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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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  • T Offline
    T Offline
    twar
    wrote on 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 last edited by
      #6

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

      1 Reply Last reply
      1
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on 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 last edited by twar
          #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
          1
          • D Offline
            D Offline
            DevAlone
            wrote on 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
            2
            • D DevAlone

              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 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 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 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 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 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
                      0
                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on 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
                        0
                        • S Offline
                          S Offline
                          Srinivas Reddy
                          wrote on 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
                          20
                          • S Srinivas Reddy

                            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 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
                            2
                            • J JamieC

                              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 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 last edited by
                                #19

                                Tried reinstalling libxcb and worked for me as well.

                                J 1 Reply Last reply
                                1
                                • S Srinivas Reddy

                                  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

                                  I Offline
                                  I Offline
                                  inbdz
                                  wrote on last edited by
                                  #20

                                  @Srinivas-Reddy many thanks

                                  1 Reply Last reply
                                  0
                                  • L Offline
                                    L Offline
                                    Lengendary
                                    wrote on 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
                                    10
                                    • L Lengendary

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

                                      A Offline
                                      A Offline
                                      artyjeep
                                      wrote on last edited by
                                      #22

                                      @Lengendary Thank you!

                                      1 Reply Last reply
                                      0
                                      • S Offline
                                        S Offline
                                        singhravi
                                        wrote on last edited by
                                        #23

                                        Hey guys,

                                        I'm getting the same error but not able to find any reason.
                                        I'm building this project, https://github.com/BelledonneCommunications/linphone-desktop
                                        and getting the error,

                                        (linphone) ➜  Packages git:(master) ./Linphone-4.5.1.AppImage 
                                        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: xcb.
                                        
                                        [1]    28317 abort (core dumped)  ./Linphone-4.5.1.AppImage
                                        (linphone) ➜  Packages git:(master) ldd ~/Qt/5.12.9/gcc_64/plugins/platforms/libqxcb.so                         
                                        	linux-vdso.so.1 (0x00007ffe12cd8000)
                                        	libQt5XcbQpa.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5XcbQpa.so.5 (0x00007f79c2a18000)
                                        	libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f79c27d3000)
                                        	libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f79c251f000)
                                        	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f79c2302000)
                                        	libQt5Gui.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5Gui.so.5 (0x00007f79c1ab3000)
                                        	libQt5DBus.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5DBus.so.5 (0x00007f79c1827000)
                                        	libQt5Core.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5Core.so.5 (0x00007f79c108c000)
                                        	libGL.so.1 => /usr/lib/x86_64-linux-gnu/libGL.so.1 (0x00007f79c0e00000)
                                        	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f79c0be1000)
                                        	libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f79c09df000)
                                        	libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f79c07b7000)
                                        	libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f79c05ad000)
                                        	libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f79c039b000)
                                        	libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f79c0063000)
                                        	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f79bfcc5000)
                                        	libxkbcommon-x11.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon-x11.so.0 (0x00007f79bfabd000)
                                        	libxkbcommon.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007f79bf87e000)
                                        	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f79bf67a000)
                                        	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f79bf2f1000)
                                        	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f79bf0d9000)
                                        	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f79bece8000)
                                        	libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f79beae6000)
                                        	libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f79be7cf000)
                                        	libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f79be59d000)
                                        	libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f79be36b000)
                                        	libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f79be11e000)
                                        	libicui18n.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicui18n.so.56 (0x00007f79bdc85000)
                                        	libicuuc.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicuuc.so.56 (0x00007f79bd8cd000)
                                        	libicudata.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicudata.so.56 (0x00007f79bbeea000)
                                        	/lib64/ld-linux-x86-64.so.2 (0x00007f79c2fbe000)
                                        	libGLX.so.0 => /usr/lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f79bbcb9000)
                                        	libGLdispatch.so.0 => /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f79bba03000)
                                        	libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f79bb7ff000)
                                        	libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f79bb5f9000)
                                        	libxcb-xkb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1 (0x00007f79bb3dd000)
                                        	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f79bb16b000)
                                        	libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f79baee7000)
                                        	libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f79bacd2000)
                                        	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f79baaca000)
                                        	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f79ba8a4000)
                                        	liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f79ba688000)
                                        	libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f79ba36c000)
                                        	libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f79ba157000)
                                        

                                        What could be the issue? Please suggest.
                                        Please let me know if you need to know anything else for this.

                                        S 1 Reply Last reply
                                        0
                                        • S singhravi

                                          Hey guys,

                                          I'm getting the same error but not able to find any reason.
                                          I'm building this project, https://github.com/BelledonneCommunications/linphone-desktop
                                          and getting the error,

                                          (linphone) ➜  Packages git:(master) ./Linphone-4.5.1.AppImage 
                                          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: xcb.
                                          
                                          [1]    28317 abort (core dumped)  ./Linphone-4.5.1.AppImage
                                          (linphone) ➜  Packages git:(master) ldd ~/Qt/5.12.9/gcc_64/plugins/platforms/libqxcb.so                         
                                          	linux-vdso.so.1 (0x00007ffe12cd8000)
                                          	libQt5XcbQpa.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5XcbQpa.so.5 (0x00007f79c2a18000)
                                          	libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f79c27d3000)
                                          	libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f79c251f000)
                                          	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f79c2302000)
                                          	libQt5Gui.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5Gui.so.5 (0x00007f79c1ab3000)
                                          	libQt5DBus.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5DBus.so.5 (0x00007f79c1827000)
                                          	libQt5Core.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5Core.so.5 (0x00007f79c108c000)
                                          	libGL.so.1 => /usr/lib/x86_64-linux-gnu/libGL.so.1 (0x00007f79c0e00000)
                                          	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f79c0be1000)
                                          	libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f79c09df000)
                                          	libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f79c07b7000)
                                          	libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f79c05ad000)
                                          	libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f79c039b000)
                                          	libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f79c0063000)
                                          	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f79bfcc5000)
                                          	libxkbcommon-x11.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon-x11.so.0 (0x00007f79bfabd000)
                                          	libxkbcommon.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007f79bf87e000)
                                          	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f79bf67a000)
                                          	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f79bf2f1000)
                                          	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f79bf0d9000)
                                          	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f79bece8000)
                                          	libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f79beae6000)
                                          	libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f79be7cf000)
                                          	libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f79be59d000)
                                          	libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f79be36b000)
                                          	libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f79be11e000)
                                          	libicui18n.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicui18n.so.56 (0x00007f79bdc85000)
                                          	libicuuc.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicuuc.so.56 (0x00007f79bd8cd000)
                                          	libicudata.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicudata.so.56 (0x00007f79bbeea000)
                                          	/lib64/ld-linux-x86-64.so.2 (0x00007f79c2fbe000)
                                          	libGLX.so.0 => /usr/lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f79bbcb9000)
                                          	libGLdispatch.so.0 => /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f79bba03000)
                                          	libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f79bb7ff000)
                                          	libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f79bb5f9000)
                                          	libxcb-xkb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1 (0x00007f79bb3dd000)
                                          	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f79bb16b000)
                                          	libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f79baee7000)
                                          	libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f79bacd2000)
                                          	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f79baaca000)
                                          	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f79ba8a4000)
                                          	liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f79ba688000)
                                          	libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f79ba36c000)
                                          	libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f79ba157000)
                                          

                                          What could be the issue? Please suggest.
                                          Please let me know if you need to know anything else for this.

                                          S Offline
                                          S Offline
                                          singhravi
                                          wrote on last edited by
                                          #24

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

                                          Hey guys,

                                          I'm getting the same error but not able to find any reason.
                                          I'm building this project, https://github.com/BelledonneCommunications/linphone-desktop
                                          and getting the error,

                                          (linphone) ➜  Packages git:(master) ./Linphone-4.5.1.AppImage 
                                          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: xcb.
                                          
                                          [1]    28317 abort (core dumped)  ./Linphone-4.5.1.AppImage
                                          (linphone) ➜  Packages git:(master) ldd ~/Qt/5.12.9/gcc_64/plugins/platforms/libqxcb.so                         
                                          	linux-vdso.so.1 (0x00007ffe12cd8000)
                                          	libQt5XcbQpa.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5XcbQpa.so.5 (0x00007f79c2a18000)
                                          	libfontconfig.so.1 => /usr/lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007f79c27d3000)
                                          	libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f79c251f000)
                                          	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f79c2302000)
                                          	libQt5Gui.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5Gui.so.5 (0x00007f79c1ab3000)
                                          	libQt5DBus.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5DBus.so.5 (0x00007f79c1827000)
                                          	libQt5Core.so.5 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libQt5Core.so.5 (0x00007f79c108c000)
                                          	libGL.so.1 => /usr/lib/x86_64-linux-gnu/libGL.so.1 (0x00007f79c0e00000)
                                          	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f79c0be1000)
                                          	libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f79c09df000)
                                          	libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f79c07b7000)
                                          	libXrender.so.1 => /usr/lib/x86_64-linux-gnu/libXrender.so.1 (0x00007f79c05ad000)
                                          	libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f79c039b000)
                                          	libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f79c0063000)
                                          	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f79bfcc5000)
                                          	libxkbcommon-x11.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon-x11.so.0 (0x00007f79bfabd000)
                                          	libxkbcommon.so.0 => /usr/lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007f79bf87e000)
                                          	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f79bf67a000)
                                          	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f79bf2f1000)
                                          	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f79bf0d9000)
                                          	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f79bece8000)
                                          	libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007f79beae6000)
                                          	libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f79be7cf000)
                                          	libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f79be59d000)
                                          	libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f79be36b000)
                                          	libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f79be11e000)
                                          	libicui18n.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicui18n.so.56 (0x00007f79bdc85000)
                                          	libicuuc.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicuuc.so.56 (0x00007f79bd8cd000)
                                          	libicudata.so.56 => /home/ravi/Qt/5.12.9/gcc_64/plugins/platforms/../../lib/libicudata.so.56 (0x00007f79bbeea000)
                                          	/lib64/ld-linux-x86-64.so.2 (0x00007f79c2fbe000)
                                          	libGLX.so.0 => /usr/lib/x86_64-linux-gnu/libGLX.so.0 (0x00007f79bbcb9000)
                                          	libGLdispatch.so.0 => /usr/lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007f79bba03000)
                                          	libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f79bb7ff000)
                                          	libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f79bb5f9000)
                                          	libxcb-xkb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1 (0x00007f79bb3dd000)
                                          	libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f79bb16b000)
                                          	libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f79baee7000)
                                          	libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007f79bacd2000)
                                          	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f79baaca000)
                                          	liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f79ba8a4000)
                                          	liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f79ba688000)
                                          	libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f79ba36c000)
                                          	libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f79ba157000)
                                          

                                          What could be the issue? Please suggest.
                                          Please let me know if you need to know anything else for this.

                                          Hey @SGaist , Can you please suggest anything for this?

                                          SGaistS 1 Reply Last reply
                                          0

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