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

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  • S Offline
    S Offline
    SGaist
    Lifetime Qt Champion
    wrote on 1 Aug 2018, 12:45 last edited by
    #2

    Hi,

    You should run your application with the QT_DEBUG_PLUGINS environment variable set to 1 to see what might go wrong when the plugin is loaded.

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

    S 1 Reply Last reply 21 Aug 2021, 20:35
    1
    • T Offline
      T Offline
      twar
      wrote on 1 Aug 2018, 16:28 last edited by
      #3
      ~ $ export QT_DEBUG_PLUGINS=1
      ~ $ qtcreator
      QFactoryLoader::QFactoryLoader() checking directory path "/usr/lib/qt/plugins/platforms" ...
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqeglfs.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqeglfs.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "eglfs"
              ]
          },
          "className": "QEglFSIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("eglfs")
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqlinuxfb.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqlinuxfb.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "linuxfb"
              ]
          },
          "className": "QLinuxFbIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("linuxfb")
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqminimal.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqminimal.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "minimal"
              ]
          },
          "className": "QMinimalIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("minimal")
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqminimalegl.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqminimalegl.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "minimalegl"
              ]
          },
          "className": "QMinimalEglIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("minimalegl")
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqoffscreen.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqoffscreen.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "offscreen"
              ]
          },
          "className": "QOffscreenIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("offscreen")
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqvnc.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqvnc.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "vnc"
              ]
          },
          "className": "QVncIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("vnc")
      QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqxcb.so"
      Found metadata in lib /usr/lib/qt/plugins/platforms/libqxcb.so, metadata=
      {
          "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
          "MetaData": {
              "Keys": [
                  "xcb"
              ]
          },
          "className": "QXcbIntegrationPlugin",
          "debug": false,
          "version": 330497
      }
      
      
      Got keys from plugin meta data ("xcb")
      QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
      Cannot load library /usr/lib/qt/plugins/platforms/libqxcb.so: (/usr/lib/libxcb-xinerama.so.0: invalid ELF header)
      QLibraryPrivate::loadPlugin failed on "/usr/lib/qt/plugins/platforms/libqxcb.so" : "Cannot load library /usr/lib/qt/plugins/platforms/libqxcb.so: (/usr/lib/libxcb-xinerama.so.0: invalid ELF header)"
      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, xcb.
      
      Aborted (core dumped)
      

      So my guess is that this is the key message:

      Got keys from plugin meta data ("xcb")
      QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
      Cannot load library /usr/lib/qt/plugins/platforms/libqxcb.so: (/usr/lib/libxcb-xinerama.so.0: invalid ELF header)
      QLibraryPrivate::loadPlugin failed on "/usr/lib/qt/plugins/platforms/libqxcb.so" : "Cannot load library /usr/lib/qt/plugins/platforms/libqxcb.so: (/usr/lib/libxcb-xinerama.so.0: invalid ELF header)"
      
      /usr/lib/qt/plugins/platforms/libqxcb.so is owned by qt5-base 5.11.1-1
      

      so what now? do I need to reinstall qt5-base or do something else?

      Best regards.

      1 Reply Last reply
      0
      • S Offline
        S Offline
        SGaist
        Lifetime Qt Champion
        wrote on 1 Aug 2018, 21:31 last edited by
        #4

        HI,

        Did you run ldd on your libraries and libxcb-xinerama versions ?

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

        P 1 Reply Last reply 17 Jun 2021, 10:04
        0
        • T Offline
          T Offline
          twar
          wrote on 2 Aug 2018, 16:08 last edited by
          #5

          Hi
          Do you mean something like this?

          ~ $ pacman -Qo /usr/lib/libxcb-xinerama.so.0
          /usr/lib/libxcb-xinerama.so.0 is owned by libxcb 1.13-1
          

          and which file I should run this ldd on exactly?

          1 Reply Last reply
          0
          • hskoglundH Offline
            hskoglundH Offline
            hskoglund
            wrote on 2 Aug 2018, 16:32 last edited by
            #6

            Hi, try: ldd /usr/lib/qt/plugins/platforms/libqxcb.so

            1 Reply Last reply
            1
            • S Offline
              S Offline
              SGaist
              Lifetime Qt Champion
              wrote on 2 Aug 2018, 18:20 last edited by
              #7

              You should try installing the corresponding dev packages on your system.

              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
              0
              • T Offline
                T Offline
                twar
                wrote on 2 Aug 2018, 18:20 last edited by twar 8 Feb 2018, 18:26
                #8

                The same as before:

                ~ $ ldd /usr/lib/qt/plugins/platforms/libqxcb.so
                /usr/lib/qt/plugins/platforms/libqxcb.so: error while loading shared libraries: /usr/lib/libxcb-xinerama.so.0: invalid ELF header
                

                but after that

                ~ $ sudo pacman -S libxcb
                [sudo] password for tomasz: 
                warning: libxcb-1.13-1 is up to date -- reinstalling
                resolving dependencies...
                looking for conflicting packages...
                
                Packages (1) libxcb-1.13-1
                
                Total Download Size:   0.99 MiB
                Total Installed Size:  3.96 MiB
                Net Upgrade Size:      0.00 MiB
                
                :: Proceed with installation? [Y/n] Y
                :: Retrieving packages...
                 libxcb-1.13-1-x86_64          1017.5 KiB   242K/s 00:04 [##############################] 100%
                (1/1) checking keys in keyring                           [##############################] 100%
                (1/1) checking package integrity                         [##############################] 100%
                (1/1) loading package files                              [##############################] 100%
                (1/1) checking for file conflicts                        [##############################] 100%
                (1/1) checking available disk space                      [##############################] 100%
                :: Processing package changes...
                (1/1) reinstalling libxcb                                [##############################] 100%
                :: Running post-transaction hooks...
                (1/1) Arming ConditionNeedsUpdate...
                ~ $ pacman -Qo /usr/lib/libxcb-xinerama.so.0
                /usr/lib/libxcb-xinerama.so.0 is owned by libxcb 1.13-1
                ~ $ ldd /usr/lib/qt/plugins/platforms/libqxcb.so
                	linux-vdso.so.1 (0x00007ffc93f56000)
                	libQt5XcbQpa.so.5 => /usr/lib/libQt5XcbQpa.so.5 (0x00007f730ea63000)
                	libQt5Gui.so.5 => /usr/lib/libQt5Gui.so.5 (0x00007f730e2d5000)
                	libQt5Core.so.5 => /usr/lib/libQt5Core.so.5 (0x00007f730dbd4000)
                	libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f730d84b000)
                	libc.so.6 => /usr/lib/libc.so.6 (0x00007f730d48f000)
                	libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00007f730d24c000)
                	libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00007f730cf83000)
                	libQt5DBus.so.5 => /usr/lib/libQt5DBus.so.5 (0x00007f730ccf3000)
                	libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007f730cad5000)
                	libX11-xcb.so.1 => /usr/lib/libX11-xcb.so.1 (0x00007f730c8d3000)
                	libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f730c594000)
                	libXi.so.6 => /usr/lib/libXi.so.6 (0x00007f730c383000)
                	libSM.so.6 => /usr/lib/libSM.so.6 (0x00007f730c17b000)
                	libICE.so.6 => /usr/lib/libICE.so.6 (0x00007f730bf5f000)
                	libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f730bd54000)
                	libxcb-xkb.so.1 => /usr/lib/libxcb-xkb.so.1 (0x00007f730bb37000)
                	libxcb-render-util.so.0 => /usr/lib/libxcb-render-util.so.0 (0x00007f730b933000)
                	libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f730b725000)
                	libxcb-sync.so.1 => /usr/lib/libxcb-sync.so.1 (0x00007f730b51e000)
                	libxcb-xfixes.so.0 => /usr/lib/libxcb-xfixes.so.0 (0x00007f730b316000)
                	libxcb-xinerama.so.0 => /usr/lib/libxcb-xinerama.so.0 (0x00007f730b113000)
                	libxcb-randr.so.0 => /usr/lib/libxcb-randr.so.0 (0x00007f730af03000)
                	libxcb-image.so.0 => /usr/lib/libxcb-image.so.0 (0x00007f730acfe000)
                	libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0x00007f730aafa000)
                	libxcb-keysyms.so.1 => /usr/lib/libxcb-keysyms.so.1 (0x00007f730a8f7000)
                	libxcb-icccm.so.4 => /usr/lib/libxcb-icccm.so.4 (0x00007f730a6f2000)
                	libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f730a4c9000)
                	libxcb-shape.so.0 => /usr/lib/libxcb-shape.so.0 (0x00007f730a2c5000)
                	libxkbcommon.so.0 => /usr/lib/libxkbcommon.so.0 (0x00007f730a086000)
                	libxkbcommon-x11.so.0 => /usr/lib/libxkbcommon-x11.so.0 (0x00007f7309e7f000)
                	libm.so.6 => /usr/lib/libm.so.6 (0x00007f7309aea000)
                	libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f73098d2000)
                	libGL.so.1 => /usr/lib/libGL.so.1 (0x00007f7309647000)
                	libpng16.so.16 => /usr/lib/libpng16.so.16 (0x00007f7309411000)
                	libharfbuzz.so.0 => /usr/lib/libharfbuzz.so.0 (0x00007f7309165000)
                	libz.so.1 => /usr/lib/libz.so.1 (0x00007f7308f4e000)
                	libsystemd.so.0 => /usr/lib/libsystemd.so.0 (0x00007f7308cc4000)
                	libicui18n.so.61 => /usr/lib/libicui18n.so.61 (0x00007f7308819000)
                	libicuuc.so.61 => /usr/lib/libicuuc.so.61 (0x00007f730845f000)
                	libpcre2-16.so.0 => /usr/lib/libpcre2-16.so.0 (0x00007f73081e8000)
                	libdouble-conversion.so.1 => /usr/lib/libdouble-conversion.so.1 (0x00007f7307fd8000)
                	libdl.so.2 => /usr/lib/libdl.so.2 (0x00007f7307dd4000)
                	libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x00007f7307abd000)
                	/usr/lib64/ld-linux-x86-64.so.2 (0x00007f730efdd000)
                	libexpat.so.1 => /usr/lib/libexpat.so.1 (0x00007f730788b000)
                	libuuid.so.1 => /usr/lib/libuuid.so.1 (0x00007f7307684000)
                	libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0x00007f7307474000)
                	libdbus-1.so.3 => /usr/lib/libdbus-1.so.3 (0x00007f7307223000)
                	libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f7307011000)
                	libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f7306e0d000)
                	libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f7306c07000)
                	libxcb-util.so.1 => /usr/lib/libxcb-util.so.1 (0x00007f7306a01000)
                	libGLX.so.0 => /usr/lib/libGLX.so.0 (0x00007f73067d0000)
                	libGLdispatch.so.0 => /usr/lib/libGLdispatch.so.0 (0x00007f730651a000)
                	libgraphite2.so.3 => /usr/lib/libgraphite2.so.3 (0x00007f73062ee000)
                	librt.so.1 => /usr/lib/librt.so.1 (0x00007f73060e6000)
                	liblzma.so.5 => /usr/lib/liblzma.so.5 (0x00007f7305ec0000)
                	liblz4.so.1 => /usr/lib/liblz4.so.1 (0x00007f7305ca3000)
                	libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0x00007f7305987000)
                	libicudata.so.61 => /usr/lib/libicudata.so.61 (0x00007f7303de2000)
                	libpcre.so.1 => /usr/lib/libpcre.so.1 (0x00007f7303b70000)
                	libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0x00007f7303950000)
                ~ $ qtcreator
                QApplication: invalid style override passed, ignoring it.
                

                so it seems that reinstalling libxcb fixed the issue. So thank you very much guys.
                I own you really big beer :-)

                @SGaist
                there is no such thing on manjaro or archlinux which manjaro is baseed on

                D 1 Reply Last reply 2 Dec 2023, 22:38
                1
                • D Offline
                  D Offline
                  DevAlone
                  wrote on 21 May 2019, 15:35 last edited by
                  #9

                  For those who could face the same issue and didn't solve by reinstalling libxcb: in my case the message was the same but it was caused by apps inside lxc unabling to open display, so, try to run another GUI app like xclock.

                  R 1 Reply Last reply 22 May 2019, 13:28
                  2
                  • D DevAlone
                    21 May 2019, 15:35

                    For those who could face the same issue and didn't solve by reinstalling libxcb: in my case the message was the same but it was caused by apps inside lxc unabling to open display, so, try to run another GUI app like xclock.

                    R Offline
                    R Offline
                    rrd0
                    wrote on 22 May 2019, 13:28 last edited by
                    #10

                    @DevAlone

                    qt.qpa.xcb: could not connect to display <<-- Is that the message you're talking about?

                    Could you explain a little better what was your problem and how did you fix it?

                    What is lxc? And why to run another GUI app? I really didn't understand what you did to fix this problem.

                    1 Reply Last reply
                    0
                    • J Offline
                      J Offline
                      jcren
                      wrote on 29 Jun 2019, 01:03 last edited by
                      #11

                      @twar
                      Hi, twar!
                      I met the same error as yours, and I cannot solve it after using several methods.
                      Can you tell me how to fix it more clearly? I'm new to geant4, so I cannot understand what you have said.
                      Thank you!

                      Best Wishes,
                      jcren.

                      1 Reply Last reply
                      0
                      • E Offline
                        E Offline
                        Ezzaat
                        wrote on 14 Sept 2019, 06:43 last edited by
                        #12

                        Hi
                        I faced this problem and I got a new version of linuxdeployqt and now that error is gone.

                        1 Reply Last reply
                        0
                        • NyilasLaszloN Offline
                          NyilasLaszloN Offline
                          NyilasLaszlo
                          wrote on 16 Apr 2020, 10:21 last edited by
                          #13

                          Hi for all!
                          I downloaded and extracted XnView MP version 0.96 on Arch Linux and same error happened.
                          Képernyőkép_2020-04-16_11-56-17.png

                          Solution:
                          I am deleted these two files: libfreetype.so and libfreetype.so.6 .
                          Képernyőkép_2020-04-16_11-57-29.png

                          Képernyőkép_2020-04-16_11-58-14.png

                          Here is the result:
                          Képernyőkép_2020-04-16_11-59-08.png

                          1 Reply Last reply
                          0
                          • J Offline
                            J Offline
                            jarvis
                            wrote on 21 May 2020, 18:03 last edited by
                            #14

                            Hi ,
                            I am facing a similar issue could you please help.

                            Got keys from plugin meta data ("xcb")
                            QFactoryLoader::QFactoryLoader() checking directory path "/usr/bin/platforms" ...
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqeglfs.so"
                            Got keys from plugin meta data ("eglfs")
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqlinuxfb.so"
                            Got keys from plugin meta data ("linuxfb")
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimal.so"
                            Got keys from plugin meta data ("minimal")
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimalegl.so"
                            Got keys from plugin meta data ("minimalegl")
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqoffscreen.so"
                            Got keys from plugin meta data ("offscreen")
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqvnc.so"
                            Got keys from plugin meta data ("vnc")
                            QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqxcb.so"
                            Got keys from plugin meta data ("xcb")
                            loaded library "/usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so"
                            qt.qpa.xcb: could not connect to display
                            qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/opt/appname/libs/Qt/plugins/platforms" 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, xcb.

                            S 1 Reply Last reply 24 Jun 2021, 16:52
                            0
                            • S Offline
                              S Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on 21 May 2020, 18:24 last edited by
                              #15

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

                              QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqminimalegl.so"
                              Got keys from plugin meta data ("minimalegl")
                              QFactoryLoader::QFactoryLoader() looking at "/usr/bin/platforms/libqoffscreen.so"
                              Got

                              Hi,

                              Start your application with the QT_DEBUG_PLUGINS environment variable set to 1 to get more information.

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

                              ali-aydinA 1 Reply Last reply 24 Oct 2021, 09:36
                              0
                              • S Offline
                                S Offline
                                Srinivas Reddy
                                wrote on 8 Jun 2020, 05:40 last edited by
                                #16

                                I am using Qt-5.15.0, got the same problem.
                                More details are:
                                QLibraryPrivate::loadPlugin failed on "/opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so" : "Cannot load library /opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: cannot open shared object file: No such file or directory)"

                                Solved by installing the dependent package.
                                Command to install: sudo apt-get install libxcb-xinerama0

                                J I O M C 11 Replies Last reply 17 Jun 2020, 03:06
                                20
                                • S Srinivas Reddy
                                  8 Jun 2020, 05:40

                                  I am using Qt-5.15.0, got the same problem.
                                  More details are:
                                  QLibraryPrivate::loadPlugin failed on "/opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so" : "Cannot load library /opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: cannot open shared object file: No such file or directory)"

                                  Solved by installing the dependent package.
                                  Command to install: sudo apt-get install libxcb-xinerama0

                                  J Offline
                                  J Offline
                                  JamieC
                                  wrote on 17 Jun 2020, 03:06 last edited by
                                  #17

                                  Fresh install had the same issues reported here. Did what @Srinivas-Reddy suggested and install libxcb-xinerama0 and everything started working. Thanks!

                                  P 1 Reply Last reply 17 Jun 2020, 22:56
                                  2
                                  • J JamieC
                                    17 Jun 2020, 03:06

                                    Fresh install had the same issues reported here. Did what @Srinivas-Reddy suggested and install libxcb-xinerama0 and everything started working. Thanks!

                                    P Offline
                                    P Offline
                                    PabloC
                                    wrote on 17 Jun 2020, 22:56 last edited by
                                    #18

                                    @JamieC I had the same problem, install libxcb-xinerama0 and I solved it, Thanks!

                                    1 Reply Last reply
                                    10
                                    • A Offline
                                      A Offline
                                      Advig
                                      wrote on 4 Jul 2020, 17:41 last edited by
                                      #19

                                      Tried reinstalling libxcb and worked for me as well.

                                      J 1 Reply Last reply 18 Nov 2020, 12:20
                                      1
                                      • S Srinivas Reddy
                                        8 Jun 2020, 05:40

                                        I am using Qt-5.15.0, got the same problem.
                                        More details are:
                                        QLibraryPrivate::loadPlugin failed on "/opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so" : "Cannot load library /opt/Qt/5.15.0/gcc_64/plugins/platforms/libqxcb.so: (libxcb-xinerama.so.0: cannot open shared object file: No such file or directory)"

                                        Solved by installing the dependent package.
                                        Command to install: sudo apt-get install libxcb-xinerama0

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                                        inbdz
                                        wrote on 27 Jul 2020, 13:57 last edited by
                                        #20

                                        @Srinivas-Reddy many thanks

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                                          Lengendary
                                          wrote on 6 Aug 2020, 18:12 last edited by
                                          #21

                                          Thanks very much!
                                          I spent several hours trying to solve this problem until I got here.
                                          sudo apt-get install libxcb-xinerama0
                                          Thanks!

                                          A M R D 4 Replies Last reply 19 Aug 2020, 02:50
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