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  4. when I run debug it just hangs on a box in bottom right saying "launching"
Forum Update on Monday, May 27th 2025

when I run debug it just hangs on a box in bottom right saying "launching"

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  • T Offline
    T Offline
    tony67
    wrote on last edited by
    #1

    Hi All,
    had some issues over last couple of days with a working project suddenly not starting. Turns out in project options build had suddenly jumped back to using qt 4.8 rather than 5.4... Anyway set qmake to point to latest and errors disappeared. This introduced an error with an unused dialogue, which I deleted. So now my code

    1. build
    2. runs
      However if I click debug it hangs on "launching" box in bottom right corner. Software doesn't open. It runs fine in just run.
      Can anyone advise? Thanks
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    • mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi
      Did u check that it still points to the correct debugger for 5.4?

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      • T Offline
        T Offline
        tony67
        wrote on last edited by tony67
        #3

        Hi
        sorry to be a pain but what should that be? I presume just GDB for linux? I'm very nervous about changing anything after the last couple of days... in tools/build run deguggers is says
        auto-detect
        system GDB ay /usr/bin/gdb
        system LLDB ay /usr/bin/lldb
        system LLDB ay /usr/bin/lldb-3.6
        System Not recognised at /usr/bin/lldb-gdbserver-3.6
        System Not recognised at /usr/bin/lldb-mi-3.6
        System Not recognised at /usr/bin/lldb-platform-3.6

        I'm guessing I need to remove the 2 lldb references, but the "remove" button is greyed out when I highlight them. I can click add or clone buttons but not "remove"?

        On the debugger menu the options are all to do with source paths and lots of tick boxes

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        • mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi
          Im on window so not sure
          what it should look when correct.
          Is there another linux you can have a look at?

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          • T Offline
            T Offline
            tony67
            wrote on last edited by
            #5

            Unfortunately not. I tried a quick new project, but that is doing the same. Presumable because the crash effect my "desktop" settings, rather than just my project setting. Or when I saved my project after the "wrong qt issue" it's saved the debugger stuff to desktop as well as the qmake-qt settings

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            • jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #6

              Which of the debuggers is set in the Kit you are using?

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

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              • T Offline
                T Offline
                tony67
                wrote on last edited by
                #7

                Thanks that's it! Didn't even know. I was looking in build debuggers, didn't know I could change it there.
                Still don't know how all my "desktop" setting change mid session...

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