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Unable to start application from Creator

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creator 4.0.3qt5.6.1x86mingw
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  • H Offline
    H Offline
    Hjortronsylt
    wrote on 13 Dec 2017, 19:00 last edited by A Former User
    #1

    Hello people,
    I'm a hobbyist that have programmed less than three weeks. I moved from QT 4.8 to 5 recently and I noticed that sometimes applications does not start.
    When I move the libraries to the /bin folder after build and launch it manually it seems to work.

    I have added: C:\qt\qt5.6.3\5.6.3\mingw49_32\bin;C:\Qt\Qt5.6.3\5.6.3\mingw49_32\bin
    to system variable, but that did not help.

    It looks like a setup error somewhere. Where should I look?

    K 1 Reply Last reply 13 Dec 2017, 20:47
    0
    • H Hjortronsylt
      13 Dec 2017, 19:00

      Hello people,
      I'm a hobbyist that have programmed less than three weeks. I moved from QT 4.8 to 5 recently and I noticed that sometimes applications does not start.
      When I move the libraries to the /bin folder after build and launch it manually it seems to work.

      I have added: C:\qt\qt5.6.3\5.6.3\mingw49_32\bin;C:\Qt\Qt5.6.3\5.6.3\mingw49_32\bin
      to system variable, but that did not help.

      It looks like a setup error somewhere. Where should I look?

      K Offline
      K Offline
      koahnig
      wrote on 13 Dec 2017, 20:47 last edited by
      #2

      @Hjortronsylt

      Hi and welcome to devnet forum

      From Qt creator typically you should be able to run all applications. Most people have problems to start applications without creator.

      Did everything work fine with Qt 4.8?
      The problem started after installing Qt 5? What is the actual subversion?

      In Qt creator you should check under "tools"->"options"->"Build&run" the different taps. Look out for warnings and error messages.
      Most likely the setup is not correct.

      Vote the answer(s) that helped you to solve your issue(s)

      1 Reply Last reply
      1
      • H Offline
        H Offline
        Hjortronsylt
        wrote on 15 Dec 2017, 14:08 last edited by
        #3

        I have done some troubleshooting.
        It does seem isolated to the library testlib maybe.

        When i run it with

        QT += core testlib
        

        it does not open.
        But running with that library it does seem to work :S
        But with another say network

        QT += core network
        

        It does work for some reason. Any clues?

        K 1 Reply Last reply 15 Dec 2017, 14:59
        0
        • H Hjortronsylt
          15 Dec 2017, 14:08

          I have done some troubleshooting.
          It does seem isolated to the library testlib maybe.

          When i run it with

          QT += core testlib
          

          it does not open.
          But running with that library it does seem to work :S
          But with another say network

          QT += core network
          

          It does work for some reason. Any clues?

          K Offline
          K Offline
          koahnig
          wrote on 15 Dec 2017, 14:59 last edited by
          #4

          @Hjortronsylt

          Well libraries are simply not interchangable. Each library does hold a couple of objects defining typically the functionality given in the general naming.

          Some namings may have changed between Qt4 and Qt5, but not network to anything.

          Also when your application is requiring network functionality, but is missing it in the link process, you should see somewhere error messages.

          I would suggest that it is best when you are checking out examples from the tutorials. There are the network examples and there is the testlib functionality
          however, Qt offers more different aspects and it may make sense for you to check out those as well.

          Vote the answer(s) that helped you to solve your issue(s)

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          13 Dec 2017, 19:00

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