Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Building App on Qt 4.8.5 - Missing Directories or Qt Cannot find them
Forum Updated to NodeBB v4.3 + New Features

Building App on Qt 4.8.5 - Missing Directories or Qt Cannot find them

Scheduled Pinned Locked Moved Unsolved General and Desktop
qt 4.8.5armopengl
19 Posts 3 Posters 5.6k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #2

    Hi,

    Did you add QT += opengl to your .pro file ?

    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
    2
    • samapolloS Offline
      samapolloS Offline
      samapollo
      wrote on last edited by
      #3

      Yeah, still having the same issue.

      jsulmJ 1 Reply Last reply
      0
      • samapolloS samapollo

        Yeah, still having the same issue.

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #4

        @samapollo Did you rerun qmake after adding QT += opengl?

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
        2
        • samapolloS Offline
          samapolloS Offline
          samapollo
          wrote on last edited by
          #5

          Yeah, and the build fails.

          1 Reply Last reply
          0
          • samapolloS Offline
            samapolloS Offline
            samapollo
            wrote on last edited by
            #6

            Do I have to set the paths manually?

            1 Reply Last reply
            0
            • samapolloS Offline
              samapolloS Offline
              samapollo
              wrote on last edited by
              #7

              @SGaist Do I need to build Qt with OpenGL Libraries? Or does a regular cross compile for ARM already come with them, and there is just something wrong with my build/system?

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #8

                Did you re-run qmake after modifying the .pro file ?

                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
                • samapolloS Offline
                  samapolloS Offline
                  samapollo
                  wrote on last edited by
                  #9

                  @SGaist Yes I did, and I get the same error.

                  1 Reply Last reply
                  0
                  • samapolloS Offline
                    samapolloS Offline
                    samapollo
                    wrote on last edited by
                    #10

                    Hey guys,
                    So I figured out how to fix this issue. In the .pro file add this line:\

                    INCLUDEPATH = ("/usr/include/qt4")

                    If you are using a different version of qt, just change the number and/or directory to fit your system and build

                    1 Reply Last reply
                    0
                    • samapolloS Offline
                      samapolloS Offline
                      samapollo
                      wrote on last edited by
                      #11

                      Now I am just having issues with QWidget
                      Again saying it cannot be found.

                      1 Reply Last reply
                      0
                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        How did you install that Qt 4.8.5 ?

                        Also note, that it's pretty old, if you can't go with Qt 5, at least try to go with 4.8.7

                        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
                        • samapolloS Offline
                          samapolloS Offline
                          samapollo
                          wrote on last edited by
                          #13

                          Nvm still terminating Saying QtOpenGl is not working.

                          [main.o] Error 1

                          1 Reply Last reply
                          0
                          • samapolloS Offline
                            samapolloS Offline
                            samapollo
                            wrote on last edited by samapollo
                            #14

                            Well its a cross compiled qt for ARM on Ubuntu.
                            I followed this guide:
                            https://forum.qt.io/topic/52546/tuto-build-qt-to-cross-compile-for-arm/2
                            Should I just reinstall/build for a new version?
                            No matter what I do I get this stupid QtOpenGL fatal compile error
                            @SGaist

                            1 Reply Last reply
                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #15

                              Did you check the configure summary ?

                              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
                              • samapolloS Offline
                                samapolloS Offline
                                samapollo
                                wrote on last edited by
                                #16

                                @SGaist
                                No, how do I create that?

                                1 Reply Last reply
                                0
                                • samapolloS Offline
                                  samapolloS Offline
                                  samapollo
                                  wrote on last edited by samapollo
                                  #17

                                  Now i'm Having and issue with <GL/gl.h> saying it cannot be found.

                                  No more issues with <QtOpenGL/QGLWidget> though.

                                  Not sure what to do here. I have installed everything necessary for OpenGL.

                                  @Qt-Champions-2014

                                  1 Reply Last reply
                                  0
                                  • samapolloS Offline
                                    samapolloS Offline
                                    samapollo
                                    wrote on last edited by
                                    #18

                                    This is my .pro file

                                    Automatically generated by qmake (2.01a) Thu Oct 4 19:01:12 2007

                                    TEMPLATE = app
                                    TARGET = loose_cannon
                                    CONFIG -= app_bundle
                                    DEPENDPATH += .
                                    INCLUDEPATH = /usr/include/qt4
                                    QT += opengl
                                    QT = core gui
                                    QT += gui declarative
                                    QT += widgets
                                    LIBS += -L /usr/lib/ -llibQtOpenGL.so.4.6.2
                                    LIBS += IGL
                                    LIBS += lfreeglut
                                    LIBS += -lglut
                                    LIBS += -lX11 -lXi -lXmu -lglut -lGL -lGLU -lm

                                    Input

                                    SOURCES += main.cpp
                                    model.cpp
                                    ui/window.cpp
                                    ui/ui.cpp
                                    ui/controller.cpp
                                    ui/cbutton.cpp
                                    node.cpp
                                    ui/hudobject.cpp
                                    ui/radar.cpp
                                    ui/hudicon.cpp
                                    entity.cpp
                                    unit.cpp
                                    tank.cpp
                                    soundbank.cpp
                                    soundthread.cpp
                                    SOURCES += glwidget.cpp
                                    SOURCES += mainwindow.cpp
                                    SOURCES += glm.cpp
                                    HEADERS += glwidget.h
                                    model.h
                                    ui/window.h
                                    ui/ui.h
                                    ui/controller.h
                                    ui/cbutton.h
                                    node.h
                                    ui/hudobject.h
                                    ui/radar.h
                                    ui/hudicon.h
                                    entity.h
                                    unit.h
                                    tank.h
                                    soundbank.h
                                    soundthread.h
                                    HEADERS += mainwindow.h
                                    HEADERS += glm.h
                                    RESOURCES +=
                                    QT += opengl
                                    multimedia

                                    unix {
                                    QMAKE_POST_LINK = cp -R ../loose_cannon/data .;
                                    }
                                    win32 {
                                    QMAKE_POST_LINK = xcopy ..\loose_cannon\data*.* data /e;
                                    }

                                    1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #19

                                      You have an error in your .pro file. Right after the QT += opengl line you have QT = core gui which resets the content of the variable to core gui. That's why you can't get the OpenGL module.

                                      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

                                      • Login

                                      • Login or register to search.
                                      • First post
                                        Last post
                                      0
                                      • Categories
                                      • Recent
                                      • Tags
                                      • Popular
                                      • Users
                                      • Groups
                                      • Search
                                      • Get Qt Extensions
                                      • Unsolved