qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.

nesnes

I am trying to add my example qt application to yocto image and then flash it to the stm32 board but I am having problems while doing it . I added meta-qt5 and meta-st-x-linux-qt layers to my build and add the dependencies to my local.conf but still having this issiu how can I solve it ? ```

code_text

root@stm32mp15-disco:~# export QT_DEBUG_PLUGINS=1
root@stm32mp15-disco:~# export QT_DEBUG_PLUGINS=1
root@stm32mp15-disco:~# run_automotive 
QFactoryLoader::QFactoryLoader() checking directory path "/usr/lib/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/plugins/platforms/libqeglfs.so"
Found metadata in lib /usr/lib/plugins/platforms/libqeglfs.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "eglfs"
        ]
    },
    "archreq": 0,
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("eglfs")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/plugins/platforms/libqminimal.so"
Found metadata in lib /usr/lib/plugins/platforms/libqminimal.so, 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 "/usr/lib/plugins/platforms/libqminimalegl.so"
Found metadata in lib /usr/lib/plugins/platforms/libqminimalegl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimalegl"
        ]
    },
    "archreq": 0,
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("minimalegl")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/plugins/platforms/libqoffscreen.so"
Found metadata in lib /usr/lib/plugins/platforms/libqoffscreen.so, 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 "/usr/lib/plugins/platforms/libqvnc.so"
Found metadata in lib /usr/lib/plugins/platforms/libqvnc.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "vnc"
        ]
    },
    "archreq": 0,
    "className": "QVncIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("vnc")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/plugins/platforms/libqwayland-egl.so"
Found metadata in lib /usr/lib/plugins/platforms/libqwayland-egl.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "wayland-egl"
        ]
    },
    "archreq": 0,
    "className": "QWaylandEglPlatformIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wayland-egl")
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/plugins/platforms/libqwayland-generic.so"
Found metadata in lib /usr/lib/plugins/platforms/libqwayland-generic.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "wayland"
        ]
    },
    "archreq": 0,
    "className": "QWaylandIntegrationPlugin",
    "debug": false,
    "version": 331520
}


Got keys from plugin meta data ("wayland")
QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
loaded library "/usr/lib/plugins/platforms/libqwayland-generic.so"
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland.

Aborted (core dumped)

code_text
```

root@stm32mp15-disco:~# ls /usr/lib/qml/QtQuick/Layouts/
libqquicklayoutsplugin.so  plugins.qmltypes  qmldir
root@stm32mp15-disco:~# chmod 755 /usr/lib/qml/QtQuick/Layouts/libqtquicklayoutsplugin.so
chmod: cannot access '/usr/lib/qml/QtQuick/Layouts/libqtquicklayoutsplugin.so': No such file or directory
root@stm32mp15-disco:~# chmod 755 /usr/lib/qml/QtQuick/Layouts/libqquicklayoutsplugin.so
root@stm32mp15-disco:~# run_automotive
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland.

Aborted (core dumped)
root@stm32mp15-disco:~# export QT_QPA_PLATFORM=offscreen
root@stm32mp15-disco:~# run_automotive
Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland.

Aborted (core dumped)
root@stm32mp15-disco:~# automotive 
QStandardPaths: runtime directory '/run/user/1000' is not owned by UID 0, but a directory permissions 0700 owned by UID 1000 GID 1000
QQmlApplicationEngine failed to load component
qrc:/qml/automotive.qml:5:1: plugin cannot be loaded for module "QtQuick.Layouts": Cannot protect module QtQuick.Layouts 2 as it was never registered
```

memozi

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