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    Unsolved Unknown module(s) in QT: quickcontrols2

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    • D
      DarkPatate last edited by

      Hello,
      I am trying to build my app on my Pi. To that purpose I installed Qt in that way:

      sudo apt-get install qt5-default
      sudo apt-get install qtcreator
      sudo apt-get install qtdeclarative5-dev
      

      I have two problems. The first one, Qt Creator isn't working for this reason:

      qtcreator: error while loading shared libraries: libGLESv2.so: cannot open shared object file: No such file or directory
      

      So I tried to compile my application with terminal, but I got that error:

      pi@raspberrypi:~/Documents/urecran/appliUR $ qmake appliUR.pro 
      Project ERROR: Unknown module(s) in QT: quickcontrols2
      

      Why QuickControls are not found.
      How can I made the compilation working?

      Thanks in adavnce!

      1 Reply Last reply Reply Quote 0
      • SGaist
        SGaist Lifetime Qt Champion last edited by

        Hi,

        What does qmake --version tell you ?

        What distribution are you using on your Pi ?

        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 Reply Quote 0
        • D
          DarkPatate @SGaist last edited by

          @SGaist Hi,
          The result of qmake version :

          QMake version 3.0
          Using Qt version 5.7.1 in /usr/lib/arm-linux-gnueabihf
          

          Here, my distribution:

          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"
          
          1 Reply Last reply Reply Quote 0
          • SGaist
            SGaist Lifetime Qt Champion last edited by

            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 Reply Quote 1
            • D
              DarkPatate @SGaist last edited by

              @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 Reply Quote 0
              • SGaist
                SGaist Lifetime Qt Champion last edited by

                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

                D 1 Reply Last reply Reply Quote 0
                • D
                  DarkPatate @SGaist last edited by

                  @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)

                  1 Reply Last reply Reply Quote 0
                  • SGaist
                    SGaist Lifetime Qt Champion last edited by

                    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

                    D 1 Reply Last reply Reply Quote 0
                    • D
                      DarkPatate @SGaist last edited by

                      @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?

                      1 Reply Last reply Reply Quote 0
                      • SGaist
                        SGaist Lifetime Qt Champion last edited by

                        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

                        D 1 Reply Last reply Reply Quote 0
                        • D
                          DarkPatate @SGaist last edited by

                          @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?

                          1 Reply Last reply Reply Quote 0
                          • SGaist
                            SGaist Lifetime Qt Champion last edited by

                            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 Reply Quote 0
                            • D
                              DarkPatate @SGaist last edited by

                              @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.

                              1 Reply Last reply Reply Quote 0
                              • SGaist
                                SGaist Lifetime Qt Champion last edited by

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

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                                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                D 1 Reply Last reply Reply Quote 0
                                • D
                                  DarkPatate @SGaist last edited by

                                  @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?

                                  1 Reply Last reply Reply Quote 0
                                  • SGaist
                                    SGaist Lifetime Qt Champion last edited by

                                    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/

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                                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    D 1 Reply Last reply Reply Quote 0
                                    • D
                                      DarkPatate @SGaist last edited by

                                      @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
                                        DarkPatate last edited by

                                        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
                                        
                                        1 Reply Last reply Reply Quote 0
                                        • sierdzio
                                          sierdzio Moderators last edited by

                                          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 Reply Quote 0
                                          • D
                                            DarkPatate @sierdzio last edited by

                                            @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.

                                            sierdzio 1 Reply Last reply Reply Quote 0
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