windeployqt, looks ok, but no files transferred

[SPlatten]

@KroMignon , when I first encountered this issue, the dll's were in individual directories, I moved them in an effort to fix it, it didn't.

Is your suggestion to recreate this structure? I don't see the environment variable QT_KIT_DIR. This was the original structure:

[KroMignon]

@SPlatten said in windeployqt, looks ok, but no files transferred:

when I first encountered this issue, the dll's were in individual directories, I moved them in an effort to fix it, it didn't.
Is your suggestion to recreate this structure? I don't see the environment variable QT_KIT_DIR.

Sorry, I was a little bit 'untidy'. For me QT_KIT_DIR means the path to the Qt kit you have used to compile the binary:

@ECHO off
@ECHO Trainer Application Installer
REM Install services and applications
@ECHO Installing MariaDB
START /wait C:\Windows\System32\msiexec /i mariadb-10.5.9-win32.msi PASSWORD=PASSWORD SERVICENAME=MariaDB /qn
@ECHO Installing MySQL/MariaDB Connector-C 6.1.5
START /wait C:\Windows\System32\msiexec /i mysql-connector-c-6.1.5-win32.msi /qn
@ECHO Importing Trainer database from SQL source...
MYSQL -u root -pPassword --force < trainer.sql
@ECHO Installing Trainer application and dll's
SET INSTFLDR=%USERPROFILE%\Trainer
IF NOT EXIST %INSTFLDR% MKDIR %USERPROFILE%\Trainer
XCOPY *.* %INSTFLDR% /E /S
SET QT5.9.2=C:\Qt\Qt5.9.2\5.9.2\msvc2015
XCOPY %QT5.9.2%\plugin\* %INSTFLDR% /E /S
@ECHO Complete...

[KroMignon]

@SPlatten said in windeployqt, looks ok, but no files transferred:

when I first encountered this issue, the dll's were in individual directories, I moved them in an effort to fix it, it didn't.

This directory struct is mandatory.
According to your error message there is no "qwindows.dll" in "platforms" sub-directory.

[SPlatten]

@KroMignon , ok, just done exactly that the entire tree structure is now present, still getting exactly the same result.

[KroMignon]

@SPlatten said in windeployqt, looks ok, but no files transferred:

ok, just done exactly that the entire tree structure is now present, still getting exactly the same result.

If plugin is present, then there are dll which cannot be loaded.
Try to set QT_DEBUG_PLUGINS and take a look at debug messages on console when starting the binary.
I would recommend to use a little batch script to start the binary and redirect output to text file:

set QT_DEBUG_PLUGINS=1
trnServer.eve > debug.txt 2>&1

[jsulm]

@SPlatten The directory structure is explained here: https://doc.qt.io/qt-5/windows-deployment.html

[SPlatten]

@KroMignon, debug.txt:

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
}


Got keys from plugin meta data ("direct2d")
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
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qdirect2dd.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/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
}


Got keys from plugin meta data ("minimal")
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
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qminimald.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/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
}


Got keys from plugin meta data ("offscreen")
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
}


"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qoffscreend.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/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
}


Got keys from plugin meta data ("windows")
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
}


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


Got keys from plugin meta data ("direct2d")
QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Trainer/platforms/qdirect2dd.dll"
Found metadata in lib C:/Users/simon.platten/Trainer/platforms/qdirect2dd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "direct2d"
        ]
    },
    "className": "QWindowsDirect2DIntegrationPlugin",
    "debug": true,
    "version": 329986
}


"The plugin 'C:/Users/simon.platten/Trainer/platforms/qdirect2dd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Trainer/platforms/qminimal.dll"
Found metadata in lib C:/Users/simon.platten/Trainer/platforms/qminimal.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 329986
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Trainer/platforms/qminimald.dll"
Found metadata in lib C:/Users/simon.platten/Trainer/platforms/qminimald.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": true,
    "version": 329986
}


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


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Trainer/platforms/qoffscreend.dll"
Found metadata in lib C:/Users/simon.platten/Trainer/platforms/qoffscreend.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "className": "QOffscreenIntegrationPlugin",
    "debug": true,
    "version": 329986
}


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


Got keys from plugin meta data ("windows")
QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Trainer/platforms/qwindowsd.dll"
Found metadata in lib C:/Users/simon.platten/Trainer/platforms/qwindowsd.dll, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "windows"
        ]
    },
    "className": "QWindowsIntegrationPlugin",
    "debug": true,
    "version": 329986
}


"The plugin 'C:/Users/simon.platten/Trainer/platforms/qwindowsd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" 
         not a plugin
Cannot load library C:\Qt\Qt5.9.2\5.9.2\msvc2015\plugins\platforms\qwindows.dll: Unknown error 0x000000c1.
QLibraryPrivate::loadPlugin failed on "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindows.dll" : "Cannot load library C:\\Qt\\Qt5.9.2\\5.9.2\\msvc2015\\plugins\\platforms\\qwindows.dll: Unknown error 0x000000c1."
This application failed to start because it could not find or load the Qt platform plugin "windows"
in "".

Available platform plugins are: direct2d, minimal, offscreen, windows.

Reinstalling the application may fix this problem.

[jsulm]

@SPlatten said in windeployqt, looks ok, but no files transferred:

"The plugin 'C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms/qwindowsd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)"
not a plugin

This is your problem

[SPlatten]

@jsulm , I'm 99% sure the exe I am using is from the release build as its only 923KB, the debug version of the same is 1,637 KB.

[jsulm]

@SPlatten said in windeployqt, looks ok, but no files transferred:

is from the release build

Then don't copy debug versions of the Qt libs/plug-ins, only release versions...

[SPlatten]

@jsulm , I haven't got any debug libraries ending with d.dll in the structure, confirmed this by using explorer with *d.dll in search platforms area.

[jsulm]

@SPlatten said in windeployqt, looks ok, but no files transferred:

QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Trainer/platforms/qwindowsd.dll"

Then what is this?

[SPlatten]

@jsulm , I really don't know how they got they're, perhaps on the last copy added from @KroMignon instruction? In anycase both the debug and the release dll's are in the same location, I will get rid of the debug dlls now.

[KroMignon]

@SPlatten said in windeployqt, looks ok, but no files transferred:

really don't know how they got they're, perhaps on the last copy added from @KroMignon instruction? In anycase both the debug and the release dll's are in the same location, I will get rid of the debug dlls now.

Yes, copy with 'brute force' is not a kind way: perhaps you should add del %INSTFLDR%/*/*d.dll /a /s to remove the debug DLL.

But I see another problem:

Cannot load library C:\Qt\Qt5.9.2\5.9.2\msvc2015\plugins\platforms\qwindows.dll: Unknown error 0x000000c1.

Why do your application try to load plugins from C:\Qt\Qt5.9.2\5.9.2\msvc2015\plugins ?
Do you have set QT_PLUGIN_PATH?

[SPlatten]

@KroMignon , I don't have the QT_PLUGIN_PATH environment variable set, I'll try adding now.

Same, no difference.

[KroMignon]

@SPlatten said in windeployqt, looks ok, but no files transferred:

I don't have the QT_PLUGIN_PATH environment variable set, I'll try adding now.

Using QT_PLUGIN_PATH is not really necessary and don't made sense to me (cf. https://doc.qt.io/qt-5/deployment-plugins.html).

But why do your application try to load plugins from C:\Qt\Qt5.9.2\5.9.2\msvc2015\plugins and not from the application path?

Per default, the Qt application will try to load the plugin located in the application installation directory.
The only way to load from another location is:

• set QT_PLUGIN_PATH
• by using qt.conf (cf. https://doc.qt.io/qt-5/qt-conf.html)
• set by code the plugin load path with QCoreApplication::setLibraryPaths()

What is your scenario?

[SPlatten]

@KroMignon , I am constructing or trying to build an installer since I cannot get it working. On the target system Qt will not have been installed and shouldn't need installing, so I am trying to package up everything required to run the executable, thats why the plugins are being installed relative to the EXE.

[KroMignon]

@SPlatten said in windeployqt, looks ok, but no files transferred:

I am constructing or trying to build an installer since I cannot get it working. On the target system Qt will not have been installed and shouldn't need installing, so I am trying to package up everything required to run the executable, thats why the plugins are being installed relative to the EXE.

I understand this but, according to the console output, the application tries to load plugins from C:\Qt\Qt5.9.2\5.9.2\msvc2015\plugins:

QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.9.2/5.9.2/msvc2015/plugins/platforms"

and not from the application path.

So my question is why? This is not the normal case, you must have done something special.

[SPlatten]

@KroMignon , why is because I didn't realise it would do this, I thought the default search criteria for DLL's is first to look in the local folder then to search the Windows folder, I don't know how or why its looking in the Qt installation folder?

[SPlatten]

@KroMignon Where does the qt.conf file go? In the same location as the EXE ?

NVM, read from documentation.