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New install, error with "qmake".

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  • B Offline
    B Offline
    bogwon
    wrote on last edited by
    #5

    Which developer tools? I installed Eclipse on my machine and can compile and run programs using it. The Qt webpage claims
    "The easiest way to start application development with Qt is to download and install Qt 5. It contains Qt libraries, examples, documentation, and the necessary development tools, such as the Qt Creator integrated development environment (IDE)."

    The error message I posted is complete. That is all it says.

    A screenshot of how the kit is configured? I do not understand what you want. I did not 'configure' anything, I simply downloaded and installed Qt5.

    I used Synaptic Package Manager to install qmake5, but it didn't help. It got stored here
    /usr/lib/x86_64-linux-gnu/qt5/bin/qmake
    invoking it in a terminal window gets you nothing (command not found)

    So then I installed qmake4. It didn't help either. It got stored here
    /usr/lib/x86_64-linux-gnu/qt4/bin/qmake
    Inside the QT IDE I still get the same error message.
    But now I can invoke it from the command line.

    Synaptic Package Manager also offers something called
    qt5-qmake-gles Qt 5 qmake Makefile generator tool - OpenGLES
    Installing this forces the removal of qmake5. Made no difference.

    kshegunovK 1 Reply Last reply
    0
    • B bogwon

      Which developer tools? I installed Eclipse on my machine and can compile and run programs using it. The Qt webpage claims
      "The easiest way to start application development with Qt is to download and install Qt 5. It contains Qt libraries, examples, documentation, and the necessary development tools, such as the Qt Creator integrated development environment (IDE)."

      The error message I posted is complete. That is all it says.

      A screenshot of how the kit is configured? I do not understand what you want. I did not 'configure' anything, I simply downloaded and installed Qt5.

      I used Synaptic Package Manager to install qmake5, but it didn't help. It got stored here
      /usr/lib/x86_64-linux-gnu/qt5/bin/qmake
      invoking it in a terminal window gets you nothing (command not found)

      So then I installed qmake4. It didn't help either. It got stored here
      /usr/lib/x86_64-linux-gnu/qt4/bin/qmake
      Inside the QT IDE I still get the same error message.
      But now I can invoke it from the command line.

      Synaptic Package Manager also offers something called
      qt5-qmake-gles Qt 5 qmake Makefile generator tool - OpenGLES
      Installing this forces the removal of qmake5. Made no difference.

      kshegunovK Offline
      kshegunovK Offline
      kshegunov
      Moderators
      wrote on last edited by kshegunov
      #6

      @bogwon said in New install, error with "qmake".:

      Which developer tools?

      You need a compiler and makefile interpreter to build anything, literally anything on linux. You'd need for g++ , libstdc++-dev, libc-dev, make, autotools , gdb (that's the debugger). Mint is a debian derivative so I'm just extrapolating the packages' names, I hope I didn't miss anything.

      I did not 'configure' anything, I simply downloaded and installed Qt5.

      How? There's an online installer, there's an offline installer, there's repository packages, there's manual building from installed sources and there's manual building from git repository. You need to tell us what you did exactly.

      Inside the QT IDE I still get the same error message.

      Which refers to a faulty kit (see the second part). A kit is a combination of compiler, qmake (and thus Qt version) and (optionally) a debuger.

      But now I can invoke it from the command line.

      You can invoke what from the command line?

      Synaptic Package Manager also offers something called

      To make the default kit work you need Qt5's qmake in your PATH, thus you need to install qt5-default. At least that is if you installed Qt through Synaptic.

      Read and abide by the Qt Code of Conduct

      1 Reply Last reply
      2
      • B Offline
        B Offline
        bogwon
        wrote on last edited by
        #7

        Something is not right. I can invoke qmake from the command line, which tells me the PATH variable is properly set, which makes me think that the QT IDE is not using PATH.

        Yes, I realize I need a compiler and makefile interpreter and all that other stuff. I have a full complement of tools that lets me build C programs. The QT package promises to include everything you need to build QT programs. So now I am wondering EXACTLY what development tools I need that were not included with the package. Or perhaps qmake is the only one and it was just on oversight on QT's part.

        jsulmJ 1 Reply Last reply
        0
        • mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by mrjj
          #8

          Hi
          just installed Serena
          after i did
          sudo apt-get install build-essential
          and also with qt5-default
          then it worked.
          qt5-default is very important.

          1 Reply Last reply
          2
          • B bogwon

            Something is not right. I can invoke qmake from the command line, which tells me the PATH variable is properly set, which makes me think that the QT IDE is not using PATH.

            Yes, I realize I need a compiler and makefile interpreter and all that other stuff. I have a full complement of tools that lets me build C programs. The QT package promises to include everything you need to build QT programs. So now I am wondering EXACTLY what development tools I need that were not included with the package. Or perhaps qmake is the only one and it was just on oversight on QT's part.

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #9

            @bogwon QtCreator does not use qmake from PATH - instead it uses qmake defined in the Kit you're using. The reason for this is that you can have as many different Qt versions installed as you need. Please check your Kit in "Tools/Options.../Build & Run/Kits" - are there any errors/warnings?
            "The QT package promises to include everything you need to build QT programs" - this is not correct. It promises to include its own tools, but compiler are not part of it (except MinGW on Windows). Make sure g++ is installed.

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

            B 1 Reply Last reply
            2
            • jsulmJ jsulm

              @bogwon QtCreator does not use qmake from PATH - instead it uses qmake defined in the Kit you're using. The reason for this is that you can have as many different Qt versions installed as you need. Please check your Kit in "Tools/Options.../Build & Run/Kits" - are there any errors/warnings?
              "The QT package promises to include everything you need to build QT programs" - this is not correct. It promises to include its own tools, but compiler are not part of it (except MinGW on Windows). Make sure g++ is installed.

              B Offline
              B Offline
              bogwon
              wrote on last edited by bogwon
              #10

              @jsulm "Tools/Options.../Build & Run/Kits" looks fine. Screenshot: (http://imgur.com/PejHdgW)
              This forum's "insert image" widget does not seem to work with imgur.

              jsulmJ kshegunovK 2 Replies Last reply
              0
              • B bogwon

                @jsulm "Tools/Options.../Build & Run/Kits" looks fine. Screenshot: (http://imgur.com/PejHdgW)
                This forum's "insert image" widget does not seem to work with imgur.

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #11

                @bogwon There is no C++ compiler set, only C. You need C++ compiler. Check the Compilers tab.

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

                1 Reply Last reply
                0
                • B bogwon

                  @jsulm "Tools/Options.../Build & Run/Kits" looks fine. Screenshot: (http://imgur.com/PejHdgW)
                  This forum's "insert image" widget does not seem to work with imgur.

                  kshegunovK Offline
                  kshegunovK Offline
                  kshegunov
                  Moderators
                  wrote on last edited by
                  #12

                  From your screenshot it's apparent you have no c++ compiler.

                  Read and abide by the Qt Code of Conduct

                  1 Reply Last reply
                  0
                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #13

                    To add to my fellows who already noted it and since you are on Linux, you need to install g++ as well.

                    Note that I find it surprising that it's not already the case since you seem to have your distribution installed Qt development environment.

                    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
                    • B Offline
                      B Offline
                      bogwon
                      wrote on last edited by
                      #14

                      OK, we're making progress. g++ was missing, installed it and the qmake error went away. Now when I try to build an example it complains about GL/gl.h missing.

                      I have some OpenGL stuff installed, my old OpenGL program compiles and runs, so I am at a loss here as to what is needed.

                      I could have sworn that in my last go-round with Linux the c++ compiler was installed by default, and may even have been the same as the C compiler.

                      jsulmJ 1 Reply Last reply
                      0
                      • B bogwon

                        OK, we're making progress. g++ was missing, installed it and the qmake error went away. Now when I try to build an example it complains about GL/gl.h missing.

                        I have some OpenGL stuff installed, my old OpenGL program compiles and runs, so I am at a loss here as to what is needed.

                        I could have sworn that in my last go-round with Linux the c++ compiler was installed by default, and may even have been the same as the C compiler.

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #15

                        @bogwon C++ compiler is not the same as C compiler. GNU Compiler Collection (GCC) is a collection of different compilers, one of them is C++, it is called g++.
                        Regarding the error: install mesa-common-dev and libgl1-mesa-dev packages

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

                        mrjjM B 3 Replies Last reply
                        1
                        • jsulmJ jsulm

                          @bogwon C++ compiler is not the same as C compiler. GNU Compiler Collection (GCC) is a collection of different compilers, one of them is C++, it is called g++.
                          Regarding the error: install mesa-common-dev and libgl1-mesa-dev packages

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #16

                          Besides qt5-default
                          this works every time
                          https://wiki.qt.io/Install_Qt_5_on_Ubuntu

                          1 Reply Last reply
                          0
                          • jsulmJ jsulm

                            @bogwon C++ compiler is not the same as C compiler. GNU Compiler Collection (GCC) is a collection of different compilers, one of them is C++, it is called g++.
                            Regarding the error: install mesa-common-dev and libgl1-mesa-dev packages

                            B Offline
                            B Offline
                            bogwon
                            wrote on last edited by
                            #17

                            @jsulm That did it! Thanks.

                            1 Reply Last reply
                            0
                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #18

                              Great !

                              Then please mark the thread as soled using the "Topic Tools" button so that other forum users may know a solution has been found :)

                              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
                              • jsulmJ jsulm

                                @bogwon C++ compiler is not the same as C compiler. GNU Compiler Collection (GCC) is a collection of different compilers, one of them is C++, it is called g++.
                                Regarding the error: install mesa-common-dev and libgl1-mesa-dev packages

                                B Offline
                                B Offline
                                bogwon
                                wrote on last edited by
                                #19

                                @jsulm C & c++ compilers are different animals now, but I am pretty sure that not too long ago there was one compiler that did both. Albeit, 'not too long ago' might mean ten or 20 years.

                                1 Reply Last reply
                                0
                                • B Offline
                                  B Offline
                                  bogwon
                                  wrote on last edited by
                                  #20

                                  I got a blog post out of this, if you are curious.

                                  1 Reply Last reply
                                  0
                                  • R Offline
                                    R Offline
                                    rohan22
                                    wrote on last edited by
                                    #21

                                    ""........Error while building/deploying project project_2 (kit: Desktop Qt 5.8.0 MSVC2015_64bit)
                                    When executing step "qmake".........""
                                    am using windows os..i am new to this help me

                                    mrjjM 1 Reply Last reply
                                    0
                                    • R rohan22

                                      ""........Error while building/deploying project project_2 (kit: Desktop Qt 5.8.0 MSVC2015_64bit)
                                      When executing step "qmake".........""
                                      am using windows os..i am new to this help me

                                      mrjjM Offline
                                      mrjjM Offline
                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #22

                                      @rohan22
                                      HI
                                      Did you install the Qt visual 2015 packet ?

                                      Also, did you go download the actual visual studio compiler from microsoft site ?

                                      It must match. Qt version and Visual studio version

                                      So it wont work if u installed say vs 2013 or vs 2017

                                      1 Reply Last reply
                                      0
                                      • R Offline
                                        R Offline
                                        rohan22
                                        wrote on last edited by
                                        #23

                                        @mrjj
                                        i am trying to install that pacaket.but i think it has different extension ".vsix" so i don"t know how to do it..
                                        there is microsoft visual c++ 2015 showing in my pc"s control panel..

                                        mrjjM 1 Reply Last reply
                                        0
                                        • R rohan22

                                          @mrjj
                                          i am trying to install that pacaket.but i think it has different extension ".vsix" so i don"t know how to do it..
                                          there is microsoft visual c++ 2015 showing in my pc"s control panel..

                                          mrjjM Offline
                                          mrjjM Offline
                                          mrjj
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #24

                                          @rohan22

                                          Hi
                                          Not sure what that is.
                                          Make sure you check on C++ in VS installer. Its not on pr default.
                                          Also no debugger pr default . must also be installed.
                                          the b4 bit version
                                          and make sure the Qt version macth your compiler.
                                          https://download.qt.io/archive/qt/5.8/5.8.0/qt-opensource-windows-x86-msvc2015_64-5.8.0.exe

                                          If all fails and you really just wanted to use Qt and not have to use Visual Studio
                                          then try
                                          https://download.qt.io/archive/qt/5.8/5.8.0/qt-opensource-windows-x86-mingw530-5.8.0.exe
                                          It has compiler and debugger with :)

                                          1 Reply Last reply
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