Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. Installation and Deployment
  4. Could not load the Qt platform plugin "xcb" in "" even though it was found

Could not load the Qt platform plugin "xcb" in "" even though it was found

Scheduled Pinned Locked Moved Unsolved Installation and Deployment
2 Posts 2 Posters 815 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • B Offline
    B Offline
    brenot
    wrote on last edited by
    #1

    Hi there,

    I installed PyQt5==5.15.1 and PyQt5-sip==12.8.1, but I cannot run my project.
    I using WSL Ubuntu in Windows10. I spent some days looking for the answer, but nothing worked. Any suggestions?

    After I run the command:

    export QT_DEBUG_PLUGINS=1

    Result:

    QFactoryLoader::QFactoryLoader() checking directory path "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms" ...
    QFactoryLoader::QFactoryLoader() looking at "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqeglfs.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqlinuxfb.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqlinuxfb.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "linuxfb"
    ]
    },
    "archreq": 0,
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("linuxfb")
    QFactoryLoader::QFactoryLoader() looking at "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqminimal.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqminimalegl.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqoffscreen.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqvnc.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-egl.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-generic.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/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() looking at "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-egl.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-egl.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "wayland-xcomposite-egl"
    ]
    },
    "archreq": 0,
    "className": "QWaylandXCompositeEglPlatformIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("wayland-xcomposite-egl")
    QFactoryLoader::QFactoryLoader() looking at "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-glx.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwayland-xcomposite-glx.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "wayland-xcomposite-glx"
    ]
    },
    "archreq": 0,
    "className": "QWaylandXCompositeGlxPlatformIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("wayland-xcomposite-glx")
    QFactoryLoader::QFactoryLoader() looking at "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwebgl.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqwebgl.so, 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 "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so"
    Found metadata in lib /home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "xcb"
    ]
    },
    "archreq": 0,
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("xcb")
    QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqeglfs.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqeglfs.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "eglfs"
    ]
    },
    "archreq": 0,
    "className": "QEglFSIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("eglfs")
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqlinuxfb.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqlinuxfb.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "linuxfb"
    ]
    },
    "archreq": 0,
    "className": "QLinuxFbIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("linuxfb")
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimal.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqminimal.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "minimal"
    ]
    },
    "archreq": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("minimal")
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimalegl.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqminimalegl.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "minimalegl"
    ]
    },
    "archreq": 0,
    "className": "QMinimalEglIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("minimalegl")
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqoffscreen.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqoffscreen.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "offscreen"
    ]
    },
    "archreq": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("offscreen")
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqvnc.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqvnc.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "vnc"
    ]
    },
    "archreq": 0,
    "className": "QVncIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("vnc")
    QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqxcb.so"
    Found metadata in lib /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "xcb"
    ]
    },
    "archreq": 0,
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 330752
    }

    Got keys from plugin meta data ("xcb")
    loaded library "/home/brenot/.local/lib/python3.8/site-packages/PyQt5/Qt/plugins/platforms/libqxcb.so"
    qt.qpa.xcb: could not connect to display
    qt.qpa.plugin: Could not load the Qt platform plugin "xcb" 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, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

    [1] 13106 abort (core dumped) python3 main.py -ai0 template__agent.py -ai1 ./seega/random_agent.py -s 1.5 -

    1 Reply Last reply
    0
    • mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by mrjj
      #2

      Hi and welcome to the forums

      WSL

      is that version 1 or version 2 ?

      As far As I understand version 2 is better with graphical apps.

      https://virtualizationreview.com/articles/2018/01/30/hands-on-with-wsl-graphical-apps.aspx
      https://www.microsoft.com/en-us/p/gwsl/9nl6kd1h33v3?activetab=pivot:overviewtab

      https://www.qtdesktopdays.com/use-the-windows-subsystem-for-linux-to-develop-your-qt-apps-on-windows/

      version 1 requires some setup to run gfx apps. (like Qt apps is)

      1 Reply Last reply
      0

      • Login
      • Login or register to search.
      • First post
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved