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Qt Creator, since update, debugging tool bar options do not work

  • I performed a Qt update a few days ago and since the update debugging using the toolbar icons does not work, I cannot step in or step over, all I can do is create breakpoints at the next point to stop and press the debugging play icon at the bottom left of the display above the hammer icon.

    Is this an issue experienced by anyone else?

  • Lifetime Qt Champion

    Hi @SPlatten,

    please provide more information.

    Which platform is that, which Creator version are you using now, which Qt version, compiler, debugger?

    Have you already tried a minimal Hello World example?
    Do the debugger shortcuts (like F10) still work?

    Does Windows > Views > Debugger Log give any insight?


  • I'm working on an iMAC:

    macOS Catalina
    Version 10.15.4
    iMac (Retina 5K, 27-inch, Late 2015)
    Processor 4Ghz Quad-Core Intel Core i7
    Memory 16GB 1867 MHz DDR3
    Graphics AMD Radeon R9 M395X 4GB

    Qt Creator 4.11.2

    Based on Qt 5.14.2 (Clang 10.0 (Apple), 64 bit)
    Built on Mar 27 2020 02:24:45
    From revision 699407b4ba

    If you can tell me how I find out what compiler and debugger versions are being used I will add these to the post.

    Using the Debug menu and menu options do work for step over, the MAC shortcut keys are a combination, step over is shift+cmd+O, which also works.

    The tool bar icons do work but not always.

  • Moderators

    I'm running 10.15.3
    with this LLDB version:


    works fine for me

    Just checked my QtCreator version, I'm running 4.10.2 a rather old one oO But I'm also not inclined to update anytime soon. Never change a running system :)

    But it should at the least show you, where to find information about the debugger you're using.

  • Thank you:

    Screenshot 2020-04-06 at 09.38.53.png

    Screenshot 2020-04-06 at 09.39.04.png

  • Moderators

    @SPlatten Important would have been the part down below, especially where it says Version 😉


  • Where is that dialog accessed from?

  • Moderators

    @SPlatten you need to select it in the list view for the info window to appear

  • Screenshot 2020-04-06 at 10.00.08.png Screenshot 2020-04-06 at 09.58.24.png

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