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Deployed program fails to load JPEG



  • Hi everyone,

    As the title states, I came across this weird problem. My program loads pixmaps and displays them in labels from both image files and built-in cover from songs, and it worked fine until I commit some updates totally irrelevant to this function. Now the deployed exe only loads PNG format, and JPEG/JPG are loaded only when running from Qt Creator(both debug & release mode).

    I did some research but still remain clueless. Here's what i've tried:

    I checked for the path info it stored by pausing the execution, which are valid and absolute path. /imageformats folder under the deployed folder has all the dlls needed. I also tried clearing & recompiling and redeploying, but none of them worked. The former deployed version also loads pictures right under the same deployed folder.

    Then I tried removing qjpeg.dll from the folder and ran the former version program and it failed to load pics too, but this makes it unable to load JPEG even if I put the dll back.

    My Qt version is 5.15.0, program is compiled with MVSC 2019 x64, running under windows 10 2004. I appreciate any clues provided in advance.


  • Lifetime Qt Champion

    Use windeployqt to deploy your application. It copies all needed plugins (like the one for jpeg) into the appropriate directories.



  • @Christian-Ehrlicher said in Deployed program fails to load JPEG:

    Use windeployqt to deploy your application. It copies all needed plugins (like the one for jpeg) into the appropriate directories.

    I am using windeployqt, and I've tried redeploying.


  • Lifetime Qt Champion

    Hi,

    You can run your application from the command line after setting the QT_DEBUG_PLUGINS environment variable to 1.

    That will give you more information about what is happening.



  • @SGaist Hi,

    Thanks for the suggestion, but could you show me how to redirect QT_DEBUG_PLUGINS output to a powershell window or a log file, when running the deployed program? I tried qInstallMessageHandler but it only logged null qpixmap warning.

    However, running from Qt Creator gave the result that all plugins are loaded correctly and successfully:

    Line 388: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgif.dll"
    Line 389: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicns.dll"
    Line 390: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qico.dll"
    Line 391: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpeg.dll"
    Line 392: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvg.dll"
    Line 393: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtga.dll"
    Line 394: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiff.dll"
    Line 395: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmp.dll"
    Line 396: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebp.dll"
    Line 554: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindows.dll"
    Line 625: loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyle.dll"
    

    I also tried loading qjpeg.dll manully by adding following code then compile&deploy(don't know if it's correct though):

    QPluginLoader loader("./imageformats/qjpeg.dll");
    if(!loader.load())
    {
        QMessageBox::warning(nullptr, "warning", "qjpeg not loaded");
    }
    

    And the warning box showed up.


  • Lifetime Qt Champion

    @closer_ex

    set QT_DEBUG_PLUGINS=1
    myApp > myApp.log
    

  • Lifetime Qt Champion

    @closer_ex said in Deployed program fails to load JPEG:

    F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpeg.dll

    As you can see the library is loaded. There must be something else wrong are you sure the jpeg file exists on the deployed system. Check with QFile::exists()



  • @Christian-Ehrlicher
    qjpeg.dll is loaded when running directly from Qt Creator, and the pictures show normally. Problem is the deployed one won't load it.

    The reason for which I'm sure the file exists is that they are readed from music tag(mp3, flac for example), the music files can be loaded and played, the covers exist , and absolute paths are passed for both function.


  • Lifetime Qt Champion

    @closer_ex said in Deployed program fails to load JPEG:

    qjpeg.dll is loaded when running directly from Qt Creator, and the pictures show normally. Problem is the deployed one won't load it.

    Please read my post, I never asked you to try to load a plugin with QLibrary - it's simply useless what you're doing there.
    You should check if the images exists on the deployed machine with QFile::exits()



  • @Christian-Ehrlicher
    I DO read your posts, and I am saying the images exist on the deployed machine. QFile::exists() is called when I check for music info at program startup, and I am using absolute path in every case - info storing, parsing and saving.

    This has been tested on different machines, and the first thing I did when this glitch came out is checking for file existence.

    And I am not loading a plugin with QPluginLoader - it's just a blind try and have been discarded.


  • Lifetime Qt Champion

    Please convert the file to a png and see if it works then on your deployed machine. I still think the path may be wrong.
    Also you did not post the output of QT_DEBUG_PLUGINS to see if the plugin can be really loaded.



  • @jsulm said in Deployed program fails to load JPEG:

    @closer_ex

    set QT_DEBUG_PLUGINS=1
    myApp > myApp.log
    

    I tried this but unfortunately the output file is 0 KB. I've set the environment variable and Qt Creator is producing plugin debug output.

    @Christian-Ehrlicher said in Deployed program fails to load JPEG:

    Please convert the file to a png and see if it works then on your deployed machine. I still think the path may be wrong.
    Also you did not post the output of QT_DEBUG_PLUGINS to see if the plugin can be really loaded.

    A few songs use png format cover and they are all loaded correctly, and I am also using a default png cover for those without a cover tag.

    For the full QT_DEBUG_PLUGINS output:

    11:18:32: Starting F:\QtProjects\build-QXGMusic-Desktop_Qt_5_15_0_MSVC2019_64bit-Release\release\QXGMusic.exe ...
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/iconengines" ...
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/iconengines/qsvgicon.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/iconengines/qsvgicon.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
        "MetaData": {
            "Keys": [
                "svg",
                "svgz",
                "svg.gz"
            ]
        },
        "archreq": 0,
        "className": "QSvgIconPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("svg", "svgz", "svg.gz")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/iconengines/qsvgicond.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/iconengines/qsvgicond.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
        "MetaData": {
            "Keys": [
                "svg",
                "svgz",
                "svg.gz"
            ]
        },
        "archreq": 1,
        "className": "QSvgIconPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/iconengines/qsvgicond.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats" ...
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgif.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgif.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "gif"
            ],
            "MimeTypes": [
                "image/gif"
            ]
        },
        "archreq": 0,
        "className": "QGifPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("gif")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgifd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgifd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "gif"
            ],
            "MimeTypes": [
                "image/gif"
            ]
        },
        "archreq": 1,
        "className": "QGifPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgifd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicns.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicns.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "icns"
            ],
            "MimeTypes": [
                "image/x-icns"
            ]
        },
        "archreq": 0,
        "className": "QICNSPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("icns")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicnsd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicnsd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "icns"
            ],
            "MimeTypes": [
                "image/x-icns"
            ]
        },
        "archreq": 1,
        "className": "QICNSPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicnsd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qico.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qico.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "ico",
                "cur"
            ],
            "MimeTypes": [
                "image/vnd.microsoft.icon",
                "image/vnd.microsoft.icon"
            ]
        },
        "archreq": 0,
        "className": "QICOPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("ico", "cur")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicod.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicod.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "ico",
                "cur"
            ],
            "MimeTypes": [
                "image/vnd.microsoft.icon",
                "image/vnd.microsoft.icon"
            ]
        },
        "archreq": 1,
        "className": "QICOPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicod.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpeg.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpeg.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "jpg",
                "jpeg"
            ],
            "MimeTypes": [
                "image/jpeg",
                "image/jpeg"
            ]
        },
        "archreq": 0,
        "className": "QJpegPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("jpg", "jpeg")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpegd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpegd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "jpg",
                "jpeg"
            ],
            "MimeTypes": [
                "image/jpeg",
                "image/jpeg"
            ]
        },
        "archreq": 1,
        "className": "QJpegPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpegd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvg.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvg.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "svg",
                "svgz"
            ],
            "MimeTypes": [
                "image/svg+xml",
                "image/svg+xml-compressed"
            ]
        },
        "archreq": 0,
        "className": "QSvgPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("svg", "svgz")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvgd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvgd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "svg",
                "svgz"
            ],
            "MimeTypes": [
                "image/svg+xml",
                "image/svg+xml-compressed"
            ]
        },
        "archreq": 1,
        "className": "QSvgPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvgd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtga.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtga.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "tga"
            ],
            "MimeTypes": [
                "image/x-tga"
            ]
        },
        "archreq": 0,
        "className": "QTgaPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("tga")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtgad.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtgad.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "tga"
            ],
            "MimeTypes": [
                "image/x-tga"
            ]
        },
        "archreq": 1,
        "className": "QTgaPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtgad.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiff.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiff.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "tiff",
                "tif"
            ],
            "MimeTypes": [
                "image/tiff",
                "image/tiff"
            ]
        },
        "archreq": 0,
        "className": "QTiffPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("tiff", "tif")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiffd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiffd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "tiff",
                "tif"
            ],
            "MimeTypes": [
                "image/tiff",
                "image/tiff"
            ]
        },
        "archreq": 1,
        "className": "QTiffPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiffd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmp.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmp.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "wbmp"
            ],
            "MimeTypes": [
                "image/vnd.wap.wbmp"
            ]
        },
        "archreq": 0,
        "className": "QWbmpPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("wbmp")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmpd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmpd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "wbmp"
            ],
            "MimeTypes": [
                "image/vnd.wap.wbmp"
            ]
        },
        "archreq": 1,
        "className": "QWbmpPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmpd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebp.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebp.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "webp"
            ],
            "MimeTypes": [
                "image/webp"
            ]
        },
        "archreq": 0,
        "className": "QWebpPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("webp")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebpd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebpd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
        "MetaData": {
            "Keys": [
                "webp"
            ],
            "MimeTypes": [
                "image/webp"
            ]
        },
        "archreq": 1,
        "className": "QWebpPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebpd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgif.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicns.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qico.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpeg.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvg.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtga.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiff.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmp.dll"
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebp.dll"
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/platforms" ...
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qdirect2d.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qdirect2d.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "direct2d"
            ]
        },
        "archreq": 0,
        "className": "QWindowsDirect2DIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("direct2d")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qdirect2dd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qdirect2dd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "direct2d"
            ]
        },
        "archreq": 1,
        "className": "QWindowsDirect2DIntegrationPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qdirect2dd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qminimal.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qminimal.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "minimal"
            ]
        },
        "archreq": 0,
        "className": "QMinimalIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("minimal")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qminimald.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qminimald.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "minimal"
            ]
        },
        "archreq": 1,
        "className": "QMinimalIntegrationPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qminimald.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qoffscreen.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qoffscreen.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "offscreen"
            ]
        },
        "archreq": 0,
        "className": "QOffscreenIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("offscreen")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qoffscreend.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qoffscreend.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "offscreen"
            ]
        },
        "archreq": 1,
        "className": "QOffscreenIntegrationPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qoffscreend.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwebgl.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwebgl.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "webgl"
            ]
        },
        "archreq": 0,
        "className": "QWebGLIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("webgl")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwebgld.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwebgld.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "webgl"
            ]
        },
        "archreq": 1,
        "className": "QWebGLIntegrationPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwebgld.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindows.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindows.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "windows"
            ]
        },
        "archreq": 0,
        "className": "QWindowsIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("windows")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindowsd.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindowsd.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "windows"
            ]
        },
        "archreq": 1,
        "className": "QWindowsIntegrationPlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindowsd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() checking directory path "F:/QtProjects/build-QXGMusic-Desktop_Qt_5_15_0_MSVC2019_64bit-Release/release/platforms" ...
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindows.dll"
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/platformthemes" ...
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platformthemes/qxdgdesktopportal.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platformthemes/qxdgdesktopportal.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformThemeFactoryInterface.5.1",
        "MetaData": {
            "Keys": [
                "xdgdesktopportal",
                "flatpak",
                "snap"
            ]
        },
        "archreq": 0,
        "className": "QXdgDesktopPortalThemePlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("xdgdesktopportal", "flatpak", "snap")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/platformthemes/qxdgdesktopportald.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/platformthemes/qxdgdesktopportald.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformThemeFactoryInterface.5.1",
        "MetaData": {
            "Keys": [
                "xdgdesktopportal",
                "flatpak",
                "snap"
            ]
        },
        "archreq": 1,
        "className": "QXdgDesktopPortalThemePlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/platformthemes/qxdgdesktopportald.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() checking directory path "F:/QtProjects/build-QXGMusic-Desktop_Qt_5_15_0_MSVC2019_64bit-Release/release/platformthemes" ...
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/styles" ...
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyle.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyle.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QStyleFactoryInterface",
        "MetaData": {
            "Keys": [
                "windowsvista"
            ]
        },
        "archreq": 0,
        "className": "QWindowsVistaStylePlugin",
        "debug": false,
        "version": 331520
    }
    Got keys from plugin meta data ("windowsvista")
    QFactoryLoader::QFactoryLoader() looking at "F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyled.dll"
    Found metadata in lib F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyled.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QStyleFactoryInterface",
        "MetaData": {
            "Keys": [
                "windowsvista"
            ]
        },
        "archreq": 1,
        "className": "QWindowsVistaStylePlugin",
        "debug": true,
        "version": 331520
    }
    "The plugin 'F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyled.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
             not a plugin
    QFactoryLoader::QFactoryLoader() checking directory path "F:/QtProjects/build-QXGMusic-Desktop_Qt_5_15_0_MSVC2019_64bit-Release/release/styles" ...
    loaded library "F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyle.dll"
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/accessible" ...
    QFactoryLoader::QFactoryLoader() checking directory path "F:/QtProjects/build-QXGMusic-Desktop_Qt_5_15_0_MSVC2019_64bit-Release/release/accessible" ...
    QFactoryLoader::QFactoryLoader() checking directory path "F:/Qt/5.15.0/msvc2019_64/plugins/accessiblebridge" ...
    QFactoryLoader::QFactoryLoader() checking directory path "F:/QtProjects/build-QXGMusic-Desktop_Qt_5_15_0_MSVC2019_64bit-Release/release/accessiblebridge" ...
    libpng warning: iCCP: known incorrect sRGB profile
    

    When finish debugging:

    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/styles/qwindowsvistastyle.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/platforms/qwindows.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qgif.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qicns.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qico.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qjpeg.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qsvg.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtga.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qtiff.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwbmp.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/imageformats/qwebp.dll" 
    QLibraryPrivate::unload succeeded on "F:/Qt/5.15.0/msvc2019_64/plugins/./imageformats/qjpeg.dll" 
    

    Note these are Qt Creator output, I am looking for a way to get output from my deployed program


  • Lifetime Qt Champion

    @closer_ex said in Deployed program fails to load JPEG:

    Note these are Qt Creator output

    So this does not help as we know it works there.

    /edit:

    I am looking for a way to get output from my deployed program

    I would take a look at windbg or similar or compile the program so it opens a command prompt (pro: CONFIG += console)



  • @Christian-Ehrlicher said in Deployed program fails to load JPEG:

    @closer_ex said in Deployed program fails to load JPEG:

    Note these are Qt Creator output

    So this does not help as we know it works there.

    /edit:

    I am looking for a way to get output from my deployed program

    I would take a look at windbg or similar or compile the program so it opens a command prompt (pro: CONFIG += console)

    CONFIG += console does open a console window, but it only produce plugin debug output when running from Qt Creator(not after deploying, should I try deploy a debug version?)

    windbg result:

    CommandLine: "F:\cutexg music\QXGMusic_win10.exe"
    
    ************* Path validation summary **************
    Response                         Time (ms)     Location
    Deferred                                       srv*
    Symbol search path is: srv*
    Executable search path is: 
    ModLoad: 00007ff6`7f960000 00007ff6`7f9c0000   image00007ff6`7f960000
    ModLoad: 00007fff`00f10000 00007fff`01105000   ntdll.dll
    ModLoad: 00007ffe`ff8c0000 00007ffe`ff97d000   C:\WINDOWS\System32\KERNEL32.DLL
    ModLoad: 00007ffe`fe650000 00007ffe`fe917000   C:\WINDOWS\System32\KERNELBASE.dll
    ModLoad: 00007fff`00da0000 00007fff`00ec9000   C:\WINDOWS\System32\ole32.dll
    ModLoad: 00007ffe`fea90000 00007ffe`feb90000   C:\WINDOWS\System32\ucrtbase.dll
    ModLoad: 00007fff`00c10000 00007fff`00d34000   C:\WINDOWS\System32\RPCRT4.dll
    ModLoad: 00007ffe`ffb30000 00007ffe`ffe85000   C:\WINDOWS\System32\combase.dll
    ModLoad: 00007fff`00a70000 00007fff`00a9a000   C:\WINDOWS\System32\GDI32.dll
    ModLoad: 00007ffe`fef40000 00007ffe`fef62000   C:\WINDOWS\System32\win32u.dll
    ModLoad: 00007ffe`fe980000 00007ffe`fea89000   C:\WINDOWS\System32\gdi32full.dll
    ModLoad: 00007ffe`febe0000 00007ffe`fec7d000   C:\WINDOWS\System32\msvcp_win.dll
    ModLoad: 00007ffe`ff980000 00007ffe`ffb20000   C:\WINDOWS\System32\USER32.dll
    ModLoad: 00007ffe`8f260000 00007ffe`8f7a7000   F:\cutexg music\Qt5Widgets.dll
    ModLoad: 00007ffe`830d0000 00007ffe`83693000   F:\cutexg music\Qt5Core.dll
    ModLoad: 00007ffe`95130000 00007ffe`9527f000   F:\cutexg music\Qt5Network.dll
    ModLoad: 00007ffe`8d8e0000 00007ffe`8dfb6000   F:\cutexg music\Qt5Gui.dll
    ModLoad: 00007ffe`fed60000 00007ffe`feebd000   C:\WINDOWS\System32\CRYPT32.dll
    ModLoad: 00007ffe`fffc0000 00007fff`00701000   C:\WINDOWS\System32\SHELL32.dll
    ModLoad: 00007ffe`ff6f0000 00007ffe`ff79a000   C:\WINDOWS\System32\ADVAPI32.dll
    ModLoad: 00007fff`00710000 00007fff`007ae000   C:\WINDOWS\System32\msvcrt.dll
    ModLoad: 00007ffe`fef70000 00007ffe`ff00b000   C:\WINDOWS\System32\sechost.dll
    ModLoad: 00007ffe`ef2a0000 00007ffe`ef331000   C:\WINDOWS\SYSTEM32\MSVCP140.dll
    ModLoad: 00007ffe`fff50000 00007ffe`fffbb000   C:\WINDOWS\System32\WS2_32.dll
    ModLoad: 00007ffe`c9750000 00007ffe`c985a000   C:\WINDOWS\SYSTEM32\MFReadWrite.dll
    ModLoad: 00007ffe`d1a10000 00007ffe`d1bcb000   C:\WINDOWS\SYSTEM32\MFPlat.DLL
    ModLoad: 00007ffe`efb40000 00007ffe`efb59000   C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll
    ModLoad: 00007ffe`feb90000 00007ffe`febdd000   C:\WINDOWS\System32\cfgmgr32.dll
    ModLoad: 00007ffe`efb30000 00007ffe`efb3c000   C:\WINDOWS\SYSTEM32\VCRUNTIME140_1.dll
    ModLoad: 00007ffe`ffea0000 00007ffe`fff4e000   C:\WINDOWS\System32\shcore.dll
    ModLoad: 00007ffe`fdb20000 00007ffe`fdbeb000   C:\WINDOWS\SYSTEM32\DNSAPI.dll
    ModLoad: 00007ffe`fdae0000 00007ffe`fdb1b000   C:\WINDOWS\SYSTEM32\IPHLPAPI.DLL
    ModLoad: 00007ffe`fc2c0000 00007ffe`fc2ef000   C:\WINDOWS\SYSTEM32\dwmapi.dll
    ModLoad: 00007ffe`fc0d0000 00007ffe`fc16f000   C:\WINDOWS\SYSTEM32\UxTheme.dll
    ModLoad: 00007ffe`faae0000 00007ffe`faae9000   C:\WINDOWS\SYSTEM32\MSVCP140_1.dll
    ModLoad: 00007ffe`fa730000 00007ffe`fa993000   C:\WINDOWS\SYSTEM32\d3d11.dll
    ModLoad: 00007ffe`fcf90000 00007ffe`fd083000   C:\WINDOWS\SYSTEM32\dxgi.dll
    ModLoad: 00007ffe`fe540000 00007ffe`fe56e000   C:\WINDOWS\SYSTEM32\USERENV.dll
    ModLoad: 00007ffe`f90e0000 00007ffe`f90ea000   C:\WINDOWS\SYSTEM32\VERSION.dll
    ModLoad: 00007ffe`e4040000 00007ffe`e405d000   C:\WINDOWS\SYSTEM32\MPR.dll
    ModLoad: 00007ffe`f02e0000 00007ffe`f02f8000   C:\WINDOWS\SYSTEM32\NETAPI32.dll
    ModLoad: 00007ffe`f2c10000 00007ffe`f2c37000   C:\WINDOWS\SYSTEM32\WINMM.dll
    ModLoad: 00007ffe`fdbf0000 00007ffe`fdbfc000   C:\WINDOWS\SYSTEM32\NETUTILS.DLL
    ModLoad: 00007ffe`eae10000 00007ffe`eae38000   C:\WINDOWS\SYSTEM32\SRVCLI.DLL
    ModLoad: 00007ffe`fe030000 00007ffe`fe03c000   C:\WINDOWS\SYSTEM32\CRYPTBASE.DLL
    (1b9c.c8c): Break instruction exception - code 80000003 (first chance)
    ntdll!LdrInitShimEngineDynamic+0x360:
    00007fff`00fe0630 cc              int     3
    

    Does this mean only the basic Qt modules are loaded?
    I used Dependencies before and it showed the same structure.


  • Lifetime Qt Champion

    WinDbg has also a mode to catch the debug output afaik.

    As you see there are no plugins loaded. Is you jpeg plugin really in F:\cutexg music\imageformats ?



  • @closer_ex
    I'm not a WinDbg expert, but with only these output, your UI probably haven't shown yet, right?
    You need to give it a "Go" from the "Debug" menu because it will auto break at the start.



  • @Christian-Ehrlicher
    Yes they are, that's why I'm so confused. More output listed below, but still no image plugins loaded.

    I've also added config += release to make sure it uses release version plugins.

    Here is my deploy folder structure:( sorry images are uploaded to imgur, please click link to see)
    root

    Inside /imageformats are plugins copied by windeployqt and are release version:
    imageformats

    And by "doesn't load" I mean something like this:
    jpeg not loaded

    Running from Qt Creator:
    jpeg loaded

    There is another phenomenon that might help, as is mentioned in the main post:

    I kept a former version exe under the same deploy folder, which had no problem loading jpeg. I moved the qjpeg.dll out of the /imageformats folder, run it and saw the same null pixmap. Then I move the dll back, but this former one still can't load jpeg.

    @Bonnie
    Thanks for the hint, now it's creating more output:

    ************* Path validation summary **************
    Response                         Time (ms)     Location
    Deferred                                       srv*
    Symbol search path is: srv*
    Executable search path is: 
    ModLoad: 00007ff6`90ba0000 00007ff6`90c00000   F:\cutexg music\QXGMusic_win10.exe
    ModLoad: 00007fff`00f10000 00007fff`01105000   C:\WINDOWS\SYSTEM32\ntdll.dll
    ModLoad: 00007ffe`ff8c0000 00007ffe`ff97d000   C:\WINDOWS\System32\KERNEL32.DLL
    ModLoad: 00007ffe`fe650000 00007ffe`fe917000   C:\WINDOWS\System32\KERNELBASE.dll
    ModLoad: 00007fff`00da0000 00007fff`00ec9000   C:\WINDOWS\System32\ole32.dll
    ModLoad: 00007ffe`fea90000 00007ffe`feb90000   C:\WINDOWS\System32\ucrtbase.dll
    ModLoad: 00007fff`00c10000 00007fff`00d34000   C:\WINDOWS\System32\RPCRT4.dll
    ModLoad: 00007ffe`ffb30000 00007ffe`ffe85000   C:\WINDOWS\System32\combase.dll
    ModLoad: 00007fff`00a70000 00007fff`00a9a000   C:\WINDOWS\System32\GDI32.dll
    ModLoad: 00007ffe`fef40000 00007ffe`fef62000   C:\WINDOWS\System32\win32u.dll
    ModLoad: 00007ffe`fe980000 00007ffe`fea89000   C:\WINDOWS\System32\gdi32full.dll
    ModLoad: 00007ffe`febe0000 00007ffe`fec7d000   C:\WINDOWS\System32\msvcp_win.dll
    ModLoad: 00007ffe`ff980000 00007ffe`ffb20000   C:\WINDOWS\System32\USER32.dll
    ModLoad: 00007ffe`c84a0000 00007ffe`c8b76000   F:\cutexg music\Qt5Gui.dll
    ModLoad: 00007ffe`ce4d0000 00007ffe`cea17000   F:\cutexg music\Qt5Widgets.dll
    ModLoad: 00007ffe`ef2a0000 00007ffe`ef331000   C:\WINDOWS\SYSTEM32\MSVCP140.dll
    ModLoad: 00007ffe`c7ed0000 00007ffe`c8493000   F:\cutexg music\Qt5Core.dll
    ModLoad: 00007ffe`c9750000 00007ffe`c985a000   C:\WINDOWS\SYSTEM32\MFReadWrite.dll
    ModLoad: 00007fff`00710000 00007fff`007ae000   C:\WINDOWS\System32\msvcrt.dll
    ModLoad: 00007ffe`fffc0000 00007fff`00701000   C:\WINDOWS\System32\SHELL32.dll
    ModLoad: 00007ffe`d1a10000 00007ffe`d1bcb000   C:\WINDOWS\SYSTEM32\MFPlat.DLL
    ModLoad: 00007ffe`efb40000 00007ffe`efb59000   C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll
    ModLoad: 00007ffe`fef70000 00007ffe`ff00b000   C:\WINDOWS\System32\sechost.dll
    ModLoad: 00007ffe`ce380000 00007ffe`ce4cf000   F:\cutexg music\Qt5Network.dll
    ModLoad: 00007ffe`fff50000 00007ffe`fffbb000   C:\WINDOWS\System32\WS2_32.dll
    ModLoad: 00007ffe`efb30000 00007ffe`efb3c000   C:\WINDOWS\SYSTEM32\VCRUNTIME140_1.dll
    ModLoad: 00007ffe`ff6f0000 00007ffe`ff79a000   C:\WINDOWS\System32\ADVAPI32.dll
    ModLoad: 00007ffe`fa730000 00007ffe`fa993000   C:\WINDOWS\SYSTEM32\d3d11.dll
    ModLoad: 00007ffe`fed60000 00007ffe`feebd000   C:\WINDOWS\System32\CRYPT32.dll
    ModLoad: 00007ffe`fcf90000 00007ffe`fd083000   C:\WINDOWS\SYSTEM32\dxgi.dll
    ModLoad: 00007ffe`fc0d0000 00007ffe`fc16f000   C:\WINDOWS\SYSTEM32\UxTheme.dll
    ModLoad: 00007ffe`feb90000 00007ffe`febdd000   C:\WINDOWS\System32\cfgmgr32.dll
    ModLoad: 00007ffe`faae0000 00007ffe`faae9000   C:\WINDOWS\SYSTEM32\MSVCP140_1.dll
    ModLoad: 00007ffe`fc2c0000 00007ffe`fc2ef000   C:\WINDOWS\SYSTEM32\dwmapi.dll
    ModLoad: 00007ffe`e4040000 00007ffe`e405d000   C:\WINDOWS\SYSTEM32\MPR.dll
    ModLoad: 00007ffe`fe540000 00007ffe`fe56e000   C:\WINDOWS\SYSTEM32\USERENV.dll
    ModLoad: 00007ffe`f90e0000 00007ffe`f90ea000   C:\WINDOWS\SYSTEM32\VERSION.dll
    ModLoad: 00007ffe`f02e0000 00007ffe`f02f8000   C:\WINDOWS\SYSTEM32\NETAPI32.dll
    ModLoad: 00007ffe`ffea0000 00007ffe`fff4e000   C:\WINDOWS\System32\shcore.dll
    ModLoad: 00007ffe`fdae0000 00007ffe`fdb1b000   C:\WINDOWS\SYSTEM32\IPHLPAPI.DLL
    ModLoad: 00007ffe`fdb20000 00007ffe`fdbeb000   C:\WINDOWS\SYSTEM32\DNSAPI.dll
    ModLoad: 00007ffe`f2c10000 00007ffe`f2c37000   C:\WINDOWS\SYSTEM32\WINMM.dll
    ModLoad: 00007ffe`fdbf0000 00007ffe`fdbfc000   C:\WINDOWS\SYSTEM32\NETUTILS.DLL
    ModLoad: 00007ffe`eae10000 00007ffe`eae38000   C:\WINDOWS\SYSTEM32\SRVCLI.DLL
    ModLoad: 00007ffe`fe030000 00007ffe`fe03c000   C:\WINDOWS\SYSTEM32\CRYPTBASE.DLL
    ModLoad: 00007fff`00b00000 00007fff`00b30000   C:\WINDOWS\System32\IMM32.DLL
    ModLoad: 00007ffe`ffe90000 00007ffe`ffe99000   C:\WINDOWS\System32\NSI.dll
    ModLoad: 00007ffe`fc5b0000 00007ffe`fc5c3000   C:\WINDOWS\SYSTEM32\kernel.appcore.dll
    ModLoad: 00007ffe`feec0000 00007ffe`fef3f000   C:\WINDOWS\System32\bcryptPrimitives.dll
    ModLoad: 00007ffe`d19a0000 00007ffe`d19d0000   C:\WINDOWS\SYSTEM32\RTWorkQ.DLL
    ModLoad: 00007ffe`fc7b0000 00007ffe`fcf43000   C:\WINDOWS\SYSTEM32\windows.storage.dll
    ModLoad: 00007ffe`fe0c0000 00007ffe`fe0ec000   C:\WINDOWS\SYSTEM32\Wldp.dll
    ModLoad: 00007fff`00aa0000 00007fff`00af5000   C:\WINDOWS\System32\shlwapi.dll
    ModLoad: 00007ffe`fe580000 00007ffe`fe5a6000   C:\WINDOWS\SYSTEM32\profapi.dll
    ModLoad: 00007ffe`c7d50000 00007ffe`c7ec5000   F:\cutexg music\platforms\qwindows.dll
    ModLoad: 00007fff`00b40000 00007fff`00c0d000   C:\WINDOWS\System32\OLEAUT32.dll
    ModLoad: 00007ffe`fa280000 00007ffe`fa294000   C:\WINDOWS\SYSTEM32\WTSAPI32.dll
    ModLoad: 00007ffe`fdc50000 00007ffe`fdc9b000   C:\WINDOWS\SYSTEM32\powrprof.dll
    ModLoad: 00007ffe`fdac0000 00007ffe`fdad2000   C:\WINDOWS\SYSTEM32\UMPDC.dll
    ModLoad: 00007ffe`de3e0000 00007ffe`de406000   F:\cutexg music\styles\qwindowsvistastyle.dll
    ModLoad: 00007ffe`dbe50000 00007ffe`dc0ce000   C:\WINDOWS\system32\dwrite.dll
    ModLoad: 00007ffe`f8930000 00007ffe`f8947000   C:\WINDOWS\SYSTEM32\dhcpcsvc6.DLL
    ModLoad: 00007ffe`f8910000 00007ffe`f892d000   C:\WINDOWS\SYSTEM32\dhcpcsvc.DLL
    ModLoad: 00007ffe`f61f0000 00007ffe`f63bd000   C:\WINDOWS\system32\d3d9.dll
    ModLoad: 00007ffe`d8ba0000 00007ffe`d8c3e000   C:\WINDOWS\SYSTEM32\xaudio2_9.dll
    ModLoad: 00007ffe`f90f0000 00007ffe`f9175000   C:\WINDOWS\SYSTEM32\MMDevAPI.DLL
    ModLoad: 00007ffe`f8ea0000 00007ffe`f8eaa000   C:\WINDOWS\SYSTEM32\AVRT.dll
    ModLoad: 00007ffe`fe400000 00007ffe`fe42c000   C:\WINDOWS\SYSTEM32\DEVOBJ.dll
    ModLoad: 00007fff`007b0000 00007fff`00858000   C:\WINDOWS\System32\clbcatq.dll
    ModLoad: 00007ffe`f8eb0000 00007ffe`f8ee1000   C:\WINDOWS\SYSTEM32\cryptnet.dll
    ModLoad: 00007ffe`fe920000 00007ffe`fe980000   C:\WINDOWS\System32\WINTRUST.DLL
    ModLoad: 00007ffe`fe240000 00007ffe`fe252000   C:\WINDOWS\SYSTEM32\MSASN1.dll
    ModLoad: 00007ffe`ff510000 00007ffe`ff52d000   C:\WINDOWS\System32\imagehlp.dll
    ModLoad: 00007ffe`f9280000 00007ffe`f9400000   C:\WINDOWS\SYSTEM32\AUDIOSES.DLL
    ModLoad: 00007ffe`fc1d0000 00007ffe`fc1e4000   C:\WINDOWS\SYSTEM32\resourcepolicyclient.dll
    ModLoad: 00007ffe`fe010000 00007ffe`fe028000   C:\WINDOWS\SYSTEM32\CRYPTSP.dll
    ModLoad: 00007ffe`fd760000 00007ffe`fd794000   C:\WINDOWS\system32\rsaenh.dll
    ModLoad: 00007ffe`fed30000 00007ffe`fed57000   C:\WINDOWS\System32\bcrypt.dll
    ModLoad: 00007ffe`ff7a0000 00007ffe`ff8b5000   C:\WINDOWS\System32\MSCTF.dll
    ModLoad: 00007ffe`dcae0000 00007ffe`dcb1e000   C:\WINDOWS\system32\dataexchange.dll
    ModLoad: 00007ffe`fb340000 00007ffe`fb525000   C:\WINDOWS\system32\dcomp.dll
    ModLoad: 00007ffe`f8050000 00007ffe`f8257000   C:\WINDOWS\system32\twinapi.appcore.dll
    ModLoad: 00007ffe`edc10000 00007ffe`edd0d000   C:\WINDOWS\SYSTEM32\textinputframework.dll
    ModLoad: 00007ffe`fb8b0000 00007ffe`fbc0a000   C:\WINDOWS\System32\CoreUIComponents.dll
    ModLoad: 00007ffe`fbc10000 00007ffe`fbd02000   C:\WINDOWS\System32\CoreMessaging.dll
    ModLoad: 00007ffe`fd380000 00007ffe`fd3b3000   C:\WINDOWS\SYSTEM32\ntmarta.dll
    ModLoad: 00007ffe`fb1e0000 00007ffe`fb336000   C:\WINDOWS\SYSTEM32\wintypes.dll
    ModLoad: 00007ffe`e7ab0000 00007ffe`e7b16000   C:\WINDOWS\system32\Oleacc.dll
    ModLoad: 00007ffe`d5840000 00007ffe`d5b34000   C:\WINDOWS\system32\UIAutomationCore.dll
    ModLoad: 00007ffe`f9fd0000 00007ffe`fa0c7000   C:\WINDOWS\SYSTEM32\PROPSYS.dll
    ModLoad: 00007ffe`fe450000 00007ffe`fe4f2000   C:\WINDOWS\SYSTEM32\sxs.dll
    (3558.275c): Break instruction exception - code 80000003 (first chance)
    ntdll!DbgBreakPoint:
    00007fff`00faf8b0 cc              int     3
    

    Seems the platforms and styles plugins are loaded, but still no imageformats.


  • Lifetime Qt Champion

    We need the debug output from the system where the plugins are not loaded.



  • @Christian-Ehrlicher

    The following lines are missing:

    ModLoad: 00007ffe`eef80000 00007ffe`eef8d000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qgif.dll
    ModLoad: 00007ffe`e3130000 00007ffe`e313f000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qicns.dll
    ModLoad: 00007ffe`de440000 00007ffe`de44d000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qico.dll
    ModLoad: 00007ffe`d8bd0000 00007ffe`d8c3a000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qjpeg.dll
    ModLoad: 00007ffe`de430000 00007ffe`de43c000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qsvg.dll
    ModLoad: 00007ffe`de3b0000 00007ffe`de404000   F:\Qt\5.15.0\msvc2019_64\bin\Qt5Svg.dll
    ModLoad: 00007ffe`de370000 00007ffe`de37c000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qtga.dll
    ModLoad: 00007ffe`cf660000 00007ffe`cf6c3000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qtiff.dll
    ModLoad: 00007ffe`d8bc0000 00007ffe`d8bcb000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qwbmp.dll
    ModLoad: 00007ffe`cf5d0000 00007ffe`cf653000   F:\Qt\5.15.0\msvc2019_64\plugins\imageformats\qwebp.dll
    

    Right before qwindows.dll.
    I compared 2 outputs, other lines are the same except some loading sequence. No clue why Qt5Svg is not loaded though...


  • Lifetime Qt Champion

    Again: please find a way to catch the debug outputs (e.g. with qInstallMessageHandler) so we can see what QT_DEBUG_PLUGINS prints out!



  • @Christian-Ehrlicher
    The message handler somehow started to log plugins debug info.

    Debug: QFactoryLoader::QFactoryLoader() checking directory path "F:/cutexg music/platforms" ...
    Debug: QFactoryLoader::QFactoryLoader() looking at "F:/cutexg music/platforms/qminimal.dll"
    Warning: Found metadata in lib F:/cutexg music/platforms/qminimal.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "minimal"
            ]
        },
        "archreq": 0,
        "className": "QMinimalIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    
    
    Debug: Got keys from plugin meta data ("minimal")
    Debug: QFactoryLoader::QFactoryLoader() looking at "F:/cutexg music/platforms/qwindows.dll"
    Warning: Found metadata in lib F:/cutexg music/platforms/qwindows.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
        "MetaData": {
            "Keys": [
                "windows"
            ]
        },
        "archreq": 0,
        "className": "QWindowsIntegrationPlugin",
        "debug": false,
        "version": 331520
    }
    
    
    Debug: Got keys from plugin meta data ("windows")
    Debug: loaded library "F:/cutexg music/platforms/qwindows.dll"
    Debug: QFactoryLoader::QFactoryLoader() checking directory path "F:/cutexg music/platformthemes" ...
    Debug: QFactoryLoader::QFactoryLoader() checking directory path "F:/cutexg music/styles" ...
    Debug: QFactoryLoader::QFactoryLoader() looking at "F:/cutexg music/styles/qwindowsvistastyle.dll"
    Warning: Found metadata in lib F:/cutexg music/styles/qwindowsvistastyle.dll, metadata=
    {
        "IID": "org.qt-project.Qt.QStyleFactoryInterface",
        "MetaData": {
            "Keys": [
                "windowsvista"
            ]
        },
        "archreq": 0,
        "className": "QWindowsVistaStylePlugin",
        "debug": false,
        "version": 331520
    }
    
    
    Debug: Got keys from plugin meta data ("windowsvista")
    Debug: loaded library "F:/cutexg music/styles/qwindowsvistastyle.dll"
    Debug: QFactoryLoader::QFactoryLoader() checking directory path "F:/cutexg music/accessible" ...
    Debug: QFactoryLoader::QFactoryLoader() checking directory path "F:/cutexg music/accessiblebridge" ...
    

    Indicating it's not even looking for the imageformats.


  • Lifetime Qt Champion

    Please take a look at QCoreApplication::libraryPaths(), it's the source where Qt iterates over: QFactoryLoader::update()



  • @Christian-Ehrlicher

    ...
    QApplication a(argc, argv);
    qDebug() << QCoreApplication::libraryPaths() << Qt::endl;
    ...
    

    Lists only the root folder, "F:/cutexg music".

    Then I tried to add an absolute path directing to MSVC plugins folder by QApplication::addLibraryPath("F:\\Qt\\5.15.0\\msvc2019_64\\plugins");

    It lists both paths and pictures are shown. Plugins debug info also indicates the plugins from MSVC folder are loaded.


  • Lifetime Qt Champion

    Ok, this does not help, did not read carefully enough.
    Please check the output of QImageReader::supportedImageFormats(). Did you maybe compile Qt by your own and disabled the image format plugins (QT_NO_IMAGEFORMATPLUGIN)?

    /edit: im referring to https://code.woboq.org/qt5/qtbase/src/gui/image/qimagereaderwriterhelpers.cpp.html#_ZN25QImageReaderWriterHelpers21supportedImageFormatsENS_10CapabilityE - as you can see calling supportedImageFormats() should trigger the QFactoryLoader for imageformats should be called.



  • @Christian-Ehrlicher

    Did you maybe compile Qt by your own and disabled the image format plugins (QT_NO_IMAGEFORMATPLUGIN)?

    I install Qt by maintenance tool online, so this is unlikely to happen.

    /edit: im referring to https://code.woboq.org/qt5/qtbase/src/gui/image/qimagereaderwriterhelpers.cpp.html#_ZN25QImageReaderWriterHelpers21supportedImageFormatsENS_10CapabilityE - as you can see calling supportedImageFormats() should trigger the QFactoryLoader for imageformats should be called.

    This is absolutely weird, so I commented QApplication::addLibraryPath("F:\\Qt\\5.15.0\\msvc2019_64\\plugins"); out, added include <QImageReader> and QImageReader::supportedImageFormats() in main, deployed program showed jpeg again, even after I comment all these added lines then clean&rebuild the project. The library path output is still the same, but now it looks for and loads image plugins.

    Now I'm really curious about what's going on, is this related to the shadow build or what?


  • Lifetime Qt Champion

    Ok,what Qt version do you use and can you maybe provide a simple reproducer? I mean something like

    int main(...)
    {
      QApplication app(argc, argv);
      QImage img("my.jpeg");
      qDebug() << "Is loaded:" << !img.isNull();
    }
    

    So we can check if this small program has the same issues.



  • @Christian-Ehrlicher

    Ok,what Qt version do you use and can you maybe provide a simple reproducer?

    I'm using Qt 5.15.0 with Qt Creator 4.13.1, compiler version is MSVC 2019 (16.7.30517.126 amd64).

    I'll try to write a minimum example, but it may take some time to reproduce the situation. Thanks very much for your effort and patience!


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