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    Forum Updated on Feb 6th

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

    Installation and Deployment
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    • SGaist
      SGaist Lifetime Qt Champion last edited by

      Hi and welcome to devnet,

      Did you check if ˋ/data/home/ldx022/miniconda3/envs/bio/plugins/platforms/libxcb-icccm.so.4ˋ is somehow corrupted as the error message suggests ?

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply Reply Quote 1
      • A
        austom last edited by

        @austom said in qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.:

        QFactoryLoader::QFactoryLoader() looking at "/data/home/ldx022/miniconda3/envs/bio/plugins/platforms/libxcb-icccm.so.4"
        QElfParser: '/data/home/ldx022/miniconda3/envs/bio/plugins/platforms/libxcb-icccm.so.4' is not an ELF object (file too small)
        "'/data/home/ldx022/miniconda3/envs/bio/plugins/platforms/libxcb-icccm.so.4' is not an ELF object (file too small)"
        not a plugin

        Thank you for your reply.
        You mean this section?
        2c25a122-b690-47de-af7e-feefd8a09b88-image.png

        I have created a corresponding soft link for libxcb-icccm.so.4 to the corresponding file in the corresponding folder.But it doesn't work at all.
        5d2688be-37bc-4464-bc8b-1211cd70956b-image.png

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        • SGaist
          SGaist Lifetime Qt Champion last edited by

          You should rather check your conda environment. That library should not be broken inside it.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • A
            austom last edited by

            e372a61a-0ee3-40f0-9853-486d196d611b-image.png
            The environment variables look like this, but I still can't find what went wrong.

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            • SGaist
              SGaist Lifetime Qt Champion last edited by

              Not the environment variables, the conda environment content itself.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • A
                austom @SGaist last edited by

                @SGaist
                Sorry I misunderstood.But how to check if there is a problem with the library?
                533ca26c-ab15-484c-97d7-2aada235cd38-image.png
                e0b3a415-49e2-4942-b3c2-1f57dd04f8a5-image.png
                I also created soft links in it.But that doesn't seem to work

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                • SGaist
                  SGaist Lifetime Qt Champion last edited by

                  The main issue from your picture seems that the library seems to be missing. You only have one link and not the final library itself.

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                  A 1 Reply Last reply Reply Quote 0
                  • A
                    austom @SGaist last edited by

                    @SGaist
                    I have downloaded the .rpm file and use the following command to install it.

                    rpm2cpio XCB util - wm - 0.4.1-5. El7. Aarch64. RPM | cpio - idvm
                    

                    But I didn't instaill it in the conda.Should I install them in the conda environment?
                    ed48ad87-78dc-48b7-9968-ca2a4365d4a7-image.png

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                    • SGaist
                      SGaist Lifetime Qt Champion last edited by

                      Wait, the original error was that there was an issue with the library file. Now you are modifying your system installation while I am suggesting to check the content of your conda environment.

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • A
                        austom @SGaist last edited by

                        @SGaist
                        You mean I can't use the soft link instead of original file in the conda environment?

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                        • SGaist
                          SGaist Lifetime Qt Champion last edited by

                          No, I mean you should search why your environment was corrupted rather than trying to force it working using libraires from somewhere else.

                          One simple way would be to create a new environment from scratch to see if you have the same issue.

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                          • A
                            austom @SGaist last edited by

                            @SGaist I have created a new conda environment. But the problem remains unresolved.The entire process of creating an environment from scratch is as follows.
                            11b3a05f-b9a8-4421-84f0-d862a02e98f4-image.png
                            367296fe-b7aa-4e07-892e-ec831f38f6b9-image.png
                            249ba189-3392-43b2-84cd-100fccfab52e-image.png
                            a25c8969-b1da-4cf3-aa13-be7546284442-image.png

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                            • SGaist
                              SGaist Lifetime Qt Champion last edited by

                              Please stop installing system packages in your conda environment. The goal of a new environnement is to start debugging your issue from scratch.

                              So please, create a new environment without installing anything other than conda packages.

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • A
                                alex smith last edited by

                                On Linux, the xcb QPA (Qt Platform Abstraction) platform plugin is used. It provides the basic functionality needed by Qt GUI and Qt Widgets to run against X11. Its library dependencies are described the following table..

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