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Unknown module(s) in QT: quickcontrols2

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #4

    Do you have the libgles2-mesa-dev package installed ?

    You also need to install qtquickcontrols2-5-dev

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

    D 1 Reply Last reply
    1
    • SGaistS SGaist

      Do you have the libgles2-mesa-dev package installed ?

      You also need to install qtquickcontrols2-5-dev

      D Offline
      D Offline
      DarkPatate
      wrote on last edited by
      #5

      @SGaist
      It's compiling!
      I just got a makefile error :

      /usr/bin/ld: cannot find -lGLESv2
      collect2: error: ld returned 1 exit status
      Makefile:143: recipe for target 'appliUR' failed
      
      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #6

        Did you install libgles2-mesa-dev ?

        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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        • SGaistS SGaist

          Did you install libgles2-mesa-dev ?

          D Offline
          D Offline
          DarkPatate
          wrote on last edited by
          #7

          @SGaist
          Yes, I got the following result:

          pi@raspberrypi:~/Documents/urecran/appliUR $ sudo apt-get install libgles2-mesa-dev
          Reading package lists... Done
          Building dependency tree       
          Reading state information... Done
          libgles2-mesa-dev is already the newest version (13.0.6-1+rpi2).
          The following packages were automatically installed and are no longer required:
            lxkeymap python-cairo python-gobject python-gobject-2 python-gtk2 python-xklavier
          Use 'sudo apt autoremove' to remove them.
          0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
          
          

          (sorry I have to wait 600 seconds to post a new message)

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #8

            What distribution are you using ?

            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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            • SGaistS SGaist

              What distribution are you using ?

              D Offline
              D Offline
              DarkPatate
              wrote on last edited by
              #9

              @SGaist As I said, I use Raspbian :

              PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)"
              NAME="Raspbian GNU/Linux"
              VERSION_ID="9"
              VERSION="9 (stretch)"
              ID=raspbian
              ID_LIKE=debian
              HOME_URL="http://www.raspbian.org/"
              SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
              BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
              

              At less you want more informations?

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #10

                Did you check whether you have this library somewhere on your OS ?

                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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                • SGaistS SGaist

                  Did you check whether you have this library somewhere on your OS ?

                  D Offline
                  D Offline
                  DarkPatate
                  wrote on last edited by
                  #11

                  @SGaist I tried this function:

                  ldconfig -p | grep libgles2-mesa-dev
                  

                  I have no output, so I suppose the lib is not installed? So why apt-get told me it is already installed?

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #12

                    You are mixing the name of the package and the name of the library. Use grep -i gles.

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

                    D 1 Reply Last reply
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                    • SGaistS SGaist

                      You are mixing the name of the package and the name of the library. Use grep -i gles.

                      D Offline
                      D Offline
                      DarkPatate
                      wrote on last edited by
                      #13

                      @SGaist said in Unknown module(s) in QT: quickcontrols2:

                      grep -i gles

                      I got this result:

                      pi@raspberrypi:/ $ ldconfig -p | grep -i gles
                      	libbrcmGLESv2.so (libc6,hard-float) => /opt/vc/lib/libbrcmGLESv2.so
                      	libGLESv1_CM.so.1 (libc6,hard-float) => /usr/lib/arm-linux-gnueabihf/libGLESv1_CM.so.1
                      

                      Both folder don't exist.

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #14

                        IIRC, the quick workaround would to create a symbolic link named libGLESv2.so to your libbrcmGLESv2.so

                        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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                        • SGaistS SGaist

                          IIRC, the quick workaround would to create a symbolic link named libGLESv2.so to your libbrcmGLESv2.so

                          D Offline
                          D Offline
                          DarkPatate
                          wrote on last edited by
                          #15

                          @SGaist
                          I never did that before.
                          So I tried that :

                          sudo ln -s /opt/vc/lib/libbrcmGLESv2.so /opt/vc/lib/libGLESv2.so
                          

                          But now the compilation failed:

                          pi@raspberrypi:~/Documents/urecran/appliUR $ make
                          g++ -Wl,-O1 -Wl,-rpath-link,/usr/lib/arm-linux-gnueabihf -o appliUR main.o strategiesmodel.o communication.o qrc_qml.o moc_strategiesmodel.o moc_communication.o   -lQt5QuickControls2 -lQt5Quick -lQt5Gui -lQt5Qml -lQt5Network -lQt5Core -lGLESv2 -lpthread 
                          /usr/bin/ld: cannot find -lGLESv2
                          collect2: error: ld returned 1 exit status
                          Makefile:143: recipe for target 'appliUR' failed
                          make: *** [appliUR] Error 1
                          

                          It was the right command?

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #16

                            Because the linker won't search for libraries in /opt/vc/lib/. Add it to your .pro file with a line like LIBS += -L/opt/vc/lib/

                            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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                            • SGaistS SGaist

                              Because the linker won't search for libraries in /opt/vc/lib/. Add it to your .pro file with a line like LIBS += -L/opt/vc/lib/

                              D Offline
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                              DarkPatate
                              wrote on last edited by
                              #17

                              @SGaist
                              Visibly another component need the lib and doesn't find the symbolic link. Sorry to be so nooby.

                              pi@raspberrypi:~/Documents/urecran/appliUR $ make
                              g++ -Wl,-O1 -Wl,-rpath-link,/usr/lib/arm-linux-gnueabihf -o appliUR main.o strategiesmodel.o communication.o qrc_qml.o moc_strategiesmodel.o moc_communication.o   -L/opt/vc/lib/ -lQt5QuickControls2 -lQt5Quick -lQt5Gui -lQt5Qml -lQt5Network -lQt5Core -lGLESv2 -lpthread 
                              /usr/bin/ld: warning: libGLESv2.so.2, needed by /usr/lib/gcc/arm-linux-gnueabihf/6/../../../arm-linux-gnueabihf/libQt5Quick.so, not found (try using -rpath or -rpath-link)
                              
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                              • D Offline
                                D Offline
                                DarkPatate
                                wrote on last edited by
                                #18

                                I am stupid, it's just a warning. The application compiled.
                                I just have a problem when I want to execute the program. The symbolic link doesn't work:

                                ./appliUR: error while loading shared libraries: libGLESv2.so: cannot open shared object file: No such file or directory
                                
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                                0
                                • sierdzioS Offline
                                  sierdzioS Offline
                                  sierdzio
                                  Moderators
                                  wrote on last edited by
                                  #19

                                  You need to enable the vc4 gpu driver in raspi-config. I think it is listed under experimental section.

                                  (Z(:^

                                  D 1 Reply Last reply
                                  0
                                  • sierdzioS sierdzio

                                    You need to enable the vc4 gpu driver in raspi-config. I think it is listed under experimental section.

                                    D Offline
                                    D Offline
                                    DarkPatate
                                    wrote on last edited by
                                    #20

                                    @sierdzio
                                    I was in :

                                    7 Advanced options > A7 GL Driver > G1 GL (Full KMS)
                                    

                                    (I din't find reference to VC4 GPU Driver in my raspi-config)

                                    I don't now if it's that? But it didn't work, even after reboot.

                                    sierdzioS 1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #21

                                      Modify LD_LIBRARY_PATH so that it also point to that folder.

                                      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
                                      1
                                      • D DarkPatate

                                        @sierdzio
                                        I was in :

                                        7 Advanced options > A7 GL Driver > G1 GL (Full KMS)
                                        

                                        (I din't find reference to VC4 GPU Driver in my raspi-config)

                                        I don't now if it's that? But it didn't work, even after reboot.

                                        sierdzioS Offline
                                        sierdzioS Offline
                                        sierdzio
                                        Moderators
                                        wrote on last edited by
                                        #22

                                        @DarkPatate said in Unknown module(s) in QT: quickcontrols2:

                                        I don't now if it's that? But it didn't work, even after reboot.

                                        Looks like it. Shame it didn't work. Try the other options maybe, but they are less likely to work.

                                        (Z(:^

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                                        • D Offline
                                          D Offline
                                          DarkPatate
                                          wrote on last edited by
                                          #23

                                          @SGaist now all the librairy are found. But there is a missing plugin:

                                          pi@raspberrypi:~/Documents/appliUR $ ./appliUR 
                                          This application failed to start because it could not find or load the Qt platform plugin "eglfs"
                                          in "".
                                          
                                          Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb.
                                          
                                          Reinstalling the application may fix this problem.
                                          Aborted
                                          

                                          So I tried to create a sym link to the EGL lib too:

                                          sudo ln -s /opt/vc/lib/libbrcmEGL.so /opt/vc/lib/libEGL.so
                                          

                                          But it didn't work. It's almost working!

                                          @sierdzio I tried all options, without success.

                                          1 Reply Last reply
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