PostgreSQL client Windows Deployment Nightmare "Driver Not Loaded"

Stoyan

@zeroptr
The necessary files for the latest PostgreSQL version are these:

libeay32.dll
libiconv-2.dll
libintl-8.dll
libpq.dll
ssleay32.dll

As you can see, Dependency Walker don't recognize one of them - "libiconv-2.dll". Probably because some of other files depend on it.

zeroptr

@Stoyan libiconv-2.dll deployed the target machine all the time...

is that a good idea to move ODBC ? for windows..

Stoyan

@zeroptr
From Qt documentation about ODBC:

Note: You should use the native driver, if it is available, instead of the ODBC driver. ODBC support can be used as a fallback for compliant databases if no native driver is available.

I don't understand this:

libiconv-2.dll deployed the target machine all the time...

Can you show all files placed in the folder for deployment?

zeroptr

@Stoyan

file structure is this

E:\VikingUretim\DepQT492MSVC\AppSettings.ini
E:\VikingUretim\DepQT492MSVC\D3Dcompiler_47.dll
E:\VikingUretim\DepQT492MSVC\files.txt
E:\VikingUretim\DepQT492MSVC\libeay32.dll
E:\VikingUretim\DepQT492MSVC\libEGL.dll
E:\VikingUretim\DepQT492MSVC\libGLESV2.dll
E:\VikingUretim\DepQT492MSVC\libiconv-2.dll
E:\VikingUretim\DepQT492MSVC\libintl-8.dll
E:\VikingUretim\DepQT492MSVC\libpq.dll
E:\VikingUretim\DepQT492MSVC\opengl32sw.dll
E:\VikingUretim\DepQT492MSVC\Qt5Core.dll
E:\VikingUretim\DepQT492MSVC\Qt5Core_o.dll
E:\VikingUretim\DepQT492MSVC\Qt5Gui.dll
E:\VikingUretim\DepQT492MSVC\Qt5PrintSupport.dll
E:\VikingUretim\DepQT492MSVC\Qt5Sql.dll
E:\VikingUretim\DepQT492MSVC\Qt5Svg.dll
E:\VikingUretim\DepQT492MSVC\Qt5Widgets.dll
E:\VikingUretim\DepQT492MSVC\ssleay32.dll
E:\VikingUretim\DepQT492MSVC\vcredist_msvc2015_x86.exe
E:\VikingUretim\DepQT492MSVC\VikingUretim.exe
E:\VikingUretim\DepQT492MSVC\iconengines\qsvgicon.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qgif.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qicns.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qico.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qjpeg.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qsvg.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qtga.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qtiff.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qwbmp.dll
E:\VikingUretim\DepQT492MSVC\imageformats\qwebp.dll
E:\VikingUretim\DepQT492MSVC\platforms\qwindows.dll
E:\VikingUretim\DepQT492MSVC\printsupport\windowsprintersupport.dll
E:\VikingUretim\DepQT492MSVC\sqldrivers\qsqlite.dll
E:\VikingUretim\DepQT492MSVC\sqldrivers\qsqlmysql.dll
E:\VikingUretim\DepQT492MSVC\sqldrivers\qsqlodbc.dll
E:\VikingUretim\DepQT492MSVC\sqldrivers\qsqlpsql.dll

Stoyan

@zeroptr
It looks that you have all files.
Maybe they are of wrong type. Which versions of Qt and PostgreSQL are you using?
They both must be of the same type 64-bit or 32-bit.
Also, did you add in *.pro file this?

QT += sql

zeroptr

@Stoyan
yes sql added at pro file..

zeroptr

can this help



Starting E:\VikingUretim\build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug\debug\VikingUretim.exe...
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qdirect2d.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qdirect2d.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "direct2d"
        ]
    },
    "className": "QWindowsDirect2DIntegrationPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qdirect2d.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qdirect2dd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qdirect2dd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "direct2d"
        ]
    },
    "className": "QWindowsDirect2DIntegrationPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("direct2d")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qminimal.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qminimal.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qminimal.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qminimald.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qminimald.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qoffscreen.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qoffscreen.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qoffscreen.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qoffscreend.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qoffscreend.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "className": "QOffscreenIntegrationPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindows.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindows.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "windows"
        ]
    },
    "className": "QWindowsIntegrationPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindows.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindowsd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindowsd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "windows"
        ]
    },
    "className": "QWindowsIntegrationPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("windows")
QFactoryLoader::QFactoryLoader() checking directory path "E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug/platforms" ...
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindowsd.dll"
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platformthemes" ...
QFactoryLoader::QFactoryLoader() checking directory path "E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug/platformthemes" ...
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/styles" ...
QFactoryLoader::QFactoryLoader() checking directory path "E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug/styles" ...
"E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug"
Application started successfully.
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/iconengines" ...
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/iconengines/qsvgicon.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/iconengines/qsvgicon.dll, metadata=
{
    "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz",
            "svg.gz"
        ]
    },
    "className": "QSvgIconPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/iconengines/qsvgicon.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/iconengines/qsvgicond.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/iconengines/qsvgicond.dll, metadata=
{
    "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz",
            "svg.gz"
        ]
    },
    "className": "QSvgIconPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("svg", "svgz", "svg.gz")
QFactoryLoader::QFactoryLoader() checking directory path "E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug/iconengines" ...
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats" ...
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qgif.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qgif.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "gif"
        ],
        "MimeTypes": [
            "image/gif"
        ]
    },
    "className": "QGifPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qgif.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qgifd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qgifd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "gif"
        ],
        "MimeTypes": [
            "image/gif"
        ]
    },
    "className": "QGifPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("gif")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicns.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicns.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "icns"
        ],
        "MimeTypes": [
            "image/x-icns"
        ]
    },
    "className": "QICNSPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicns.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicnsd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicnsd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "icns"
        ],
        "MimeTypes": [
            "image/x-icns"
        ]
    },
    "className": "QICNSPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("icns")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qico.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qico.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "ico",
            "cur"
        ],
        "MimeTypes": [
            "image/vnd.microsoft.icon"
        ]
    },
    "className": "QICOPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qico.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicod.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicod.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "ico",
            "cur"
        ],
        "MimeTypes": [
            "image/vnd.microsoft.icon"
        ]
    },
    "className": "QICOPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("ico", "cur")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qjpeg.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qjpeg.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "jpg",
            "jpeg"
        ],
        "MimeTypes": [
            "image/jpeg",
            "image/jpeg"
        ]
    },
    "className": "QJpegPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qjpeg.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qjpegd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qjpegd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "jpg",
            "jpeg"
        ],
        "MimeTypes": [
            "image/jpeg",
            "image/jpeg"
        ]
    },
    "className": "QJpegPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("jpg", "jpeg")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qsvg.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qsvg.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz"
        ],
        "MimeTypes": [
            "image/svg+xml",
            "image/svg+xml-compressed"
        ]
    },
    "className": "QSvgPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qsvg.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qsvgd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qsvgd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "svg",
            "svgz"
        ],
        "MimeTypes": [
            "image/svg+xml",
            "image/svg+xml-compressed"
        ]
    },
    "className": "QSvgPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("svg", "svgz")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtga.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtga.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tga"
        ],
        "MimeTypes": [
            "image/x-tga"
        ]
    },
    "className": "QTgaPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtga.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtgad.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtgad.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tga"
        ],
        "MimeTypes": [
            "image/x-tga"
        ]
    },
    "className": "QTgaPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("tga")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtiff.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtiff.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tiff",
            "tif"
        ],
        "MimeTypes": [
            "image/tiff",
            "image/tiff"
        ]
    },
    "className": "QTiffPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtiff.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtiffd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtiffd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "tiff",
            "tif"
        ],
        "MimeTypes": [
            "image/tiff",
            "image/tiff"
        ]
    },
    "className": "QTiffPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("tiff", "tif")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwbmp.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwbmp.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "wbmp"
        ],
        "MimeTypes": [
            "image/vnd.wap.wbmp"
        ]
    },
    "className": "QWbmpPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwbmp.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwbmpd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwbmpd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "wbmp"
        ],
        "MimeTypes": [
            "image/vnd.wap.wbmp"
        ]
    },
    "className": "QWbmpPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("wbmp")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwebp.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwebp.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "webp"
        ],
        "MimeTypes": [
            "image/webp"
        ]
    },
    "className": "QWebpPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwebp.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwebpd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwebpd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
        "Keys": [
            "webp"
        ],
        "MimeTypes": [
            "image/webp"
        ]
    },
    "className": "QWebpPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("webp")
QFactoryLoader::QFactoryLoader() checking directory path "E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug/imageformats" ...
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qgifd.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicnsd.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qicod.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qjpegd.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qsvgd.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtgad.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qtiffd.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwbmpd.dll"
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/imageformats/qwebpd.dll"
myDB.addDatabase(QPSQL);
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers" ...
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlite.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlite.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QSQLITE"
        ]
    },
    "className": "QSQLiteDriverPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlite.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlited.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlited.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QSQLITE"
        ]
    },
    "className": "QSQLiteDriverPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("QSQLITE")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlmysql.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlmysql.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QMYSQL3",
            "QMYSQL"
        ]
    },
    "className": "QMYSQLDriverPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlmysql.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlmysqld.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlmysqld.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QMYSQL3",
            "QMYSQL"
        ]
    },
    "className": "QMYSQLDriverPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("QMYSQL3", "QMYSQL")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlodbc.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlodbc.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QODBC3",
            "QODBC"
        ]
    },
    "className": "QODBCDriverPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlodbc.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlodbcd.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlodbcd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QODBC3",
            "QODBC"
        ]
    },
    "className": "QODBCDriverPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("QODBC3", "QODBC")
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlpsql.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlpsql.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QPSQL7",
            "QPSQL"
        ]
    },
    "className": "QPSQLDriverPlugin",
    "debug": false,
    "version": 329986
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlpsql.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlpsqld.dll"
Found metadata in lib C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlpsqld.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QPSQL7",
            "QPSQL"
        ]
    },
    "className": "QPSQLDriverPlugin",
    "debug": true,
    "version": 329986
}


Got keys from plugin meta data ("QPSQL7", "QPSQL")
QFactoryLoader::QFactoryLoader() checking directory path "E:/VikingUretim/build-VikingUretim-Desktop_Qt_5_9_2_MSVC2015_32bit-Debug/debug/sqldrivers" ...
loaded library "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/sqldrivers/qsqlpsqld.dll"
myDB.addDatabase(QPSQL); END
"Driver not loaded"
"Driver not loaded"

SGaist

Hi,

You wrote about both MSVC2013 and 2015 so are you trying to use a MSVC2013 build of PostgreSQL with a MSVC2015 build of Qt ? If so that won't work, Microsoft's compilers are not compatible one with the other when building C++ libraries. The current only exception is VS2017 which is backward compatible with VS2015. So beside architecture also check that part.

Note that it looks like you are trying to distribute a debug build which might not be what you want.

zeroptr

Hello @SGaist

I'm not trying to distribute debug version.. I can only have that output at Debug mode.. After making lots of trial and new test projects..

I found that problem couse from a global QSqlDatabase variable.. That cost me a week...
It tries to create it self before QCoreApplication so no plugins can be loaded..

Thanks to Everyone...

mrjj

Oh
That was a nasty one.
There were no errors/warnings in Creator console?

zeroptr

@mrjj unfortunately it took a week to figure out the problem...

mrjj

@zeroptr
Yep there is a many very good reasons most of us avoid globals at all costs.
But normally there is a warning that object initialized before application running
sort of msg.
Update:
Nope, did not say a thing.

Normally u get
alt text

SGaist

There's absolutely no need for a class member nor a global QSqlDatabase variable. It's already a sort of singleton that has all the interface needed to retrieve database information any time needed.

zeroptr

@mrjj unfortunately if I get this message before I can repair this in a day or two.. but mingw or MSVC doesn't produce any message like this..

zeroptr

@SGaist yes I unfortunately learned that on long way..

SGaist

To be fair, there's a warning in the detailed documentation of QSqlDatabase about not keeping QSqlDatabase variables around.

mrjj

@zeroptr
Well it didn't say that for the QSqlDatabase .
Only the QWidget gave spank at once.
I guess its not illegal to have an instance of QSqlDatabase
before main but as you found out it can that try to use stuff
before its up and running.

But the good part is that we learned something. I didn't guess at such thing but next time i will ask.

mrjj

@SGaist
Oh not as even as class member.