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Qt Creator 14 is unable to debug a Qt 5 project

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  • cristian-adamC cristian-adam

    MinGW 8.1.0 32bit

    Is the issue. It has a GDB with Python 2.7, and Qt Creator 14 only has support for GDB using Python 3.

    The solution is to install a newer MinGW from Qt SDK, clone the Qt 5.15.2 Kit and update the Compilers and Debugger configuration.

    M Offline
    M Offline
    monegator
    wrote on last edited by
    #6

    @cristian-adam
    I see!
    Thank you!

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    • V Offline
      V Offline
      Vdeilae
      wrote on last edited by Vdeilae
      #7

      I meet the same problem!is your problem solved?

      1 Reply Last reply
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      • piervalliP Offline
        piervalliP Offline
        piervalli
        wrote on last edited by
        #8

        I have the same problem with empty Windows 11 and Qt creator 14

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        • V Offline
          V Offline
          Vdeilae
          wrote on last edited by
          #9

          wtf!I install QTCreater 13 and lunch it,link Qt Path,Guess what?It all works good!Don't use QTCreater 14 with QT5 Project!
          https://download.qt.io/official_releases/qtcreator/13.0/13.0.2/

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          • cristian-adamC Offline
            cristian-adamC Offline
            cristian-adam
            wrote on last edited by
            #10

            Guys, Qt Creator 14 requires a gdb.exe that comes with Python3 bindings.

            If you are using a MinGW Kit that uses a GDB from an older MinGW Toolchain you have two options:

            1. Use an older Qt Creator (13.0.2) that doesn't require Python3 for GDB
            2. Upgrade the gdb debugger to a newer version.

            Good luck.

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            • cristian-adamC Offline
              cristian-adamC Offline
              cristian-adam
              wrote on last edited by
              #11

              The 3rd option would be:

              1. Build Qt 5.15.14 with a newer MinGW Toolchain.

              With 3. you get the Python3 bindings for gdb and all the security and updates from Qt 5.15 series.

              Note that the Qt 5.15.2 was released in 2020.

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              • piervalliP Offline
                piervalliP Offline
                piervalli
                wrote on last edited by
                #12

                @cristian-adam For 5.15 Mingw is always the version 8.1 what is now version?
                Thanks

                cristian-adamC 1 Reply Last reply
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                • piervalliP piervalli

                  @cristian-adam For 5.15 Mingw is always the version 8.1 what is now version?
                  Thanks

                  cristian-adamC Offline
                  cristian-adamC Offline
                  cristian-adam
                  wrote on last edited by
                  #13

                  @piervalli said in Qt Creator 14 is unable to debut a Qt 5 project:

                  @cristian-adam For 5.15 Mingw is always the version 8.1 what is now version?
                  Thanks

                  If you look at https://wiki.qt.io/MinGW you would notice ... 11.2.0. Which you could also install via the Qt SDK.

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                  • cristian-adamC Offline
                    cristian-adamC Offline
                    cristian-adam
                    wrote on last edited by
                    #14

                    I've made a screencast showcasing the issue with Qt 5.15.2 MinGW x64 and Qt Creator 14. And also showing how to use a newer debugger and have no issues:

                    alt text

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                    • cristian-adamC cristian-adam

                      I've made a screencast showcasing the issue with Qt 5.15.2 MinGW x64 and Qt Creator 14. And also showing how to use a newer debugger and have no issues:

                      alt text

                      A Offline
                      A Offline
                      aliks-os
                      wrote on last edited by
                      #15

                      @cristian-adam Thanks!

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                      • piervalliP piervalli referenced this topic on
                      • cristian-adamC cristian-adam

                        But, since you are using 32bit... you can get a toolchain from https://github.com/cristianadam/mingw-builds/releases/tag/v11.2.0-rev3 or https://github.com/niXman/mingw-builds-binaries/releases

                        aha_1980A Offline
                        aha_1980A Offline
                        aha_1980
                        Lifetime Qt Champion
                        wrote on last edited by
                        #16

                        @cristian-adam You're a lifesaver!

                        I just installed your toolchain and was able to debug my Qt 5.15 / 32bit programs again.

                        In my opinion, a current 32 bit MinGW toolchain should be delivered with the online installer.

                        We are using 32bit 3rd-party libraries (GPIB-32.dll) so switching to 64bit is currently no option.

                        Thanks again and best regads

                        Qt has to stay free or it will die.

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                        • A Offline
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                          AqUaReGiA
                          wrote on last edited by AqUaReGiA
                          #17

                          I have the same problem but I'm using MSVC most prolly cdb has same problem but is there a way to fix it?

                          Edit: Toolchain Windows 11 Pro 23H2, Kit -> Qt 5.15.17 MSVC 2019 32-bit

                          cristian-adamC 1 Reply Last reply
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                          • A AqUaReGiA

                            I have the same problem but I'm using MSVC most prolly cdb has same problem but is there a way to fix it?

                            Edit: Toolchain Windows 11 Pro 23H2, Kit -> Qt 5.15.17 MSVC 2019 32-bit

                            cristian-adamC Offline
                            cristian-adamC Offline
                            cristian-adam
                            wrote on last edited by
                            #18

                            @AqUaReGiA said in Qt Creator 14 is unable to debug a Qt 5 project:

                            I have the same problem but I'm using MSVC most prolly cdb has same problem but is there a way to fix it?

                            https://bugreports.qt.io/browse/QTCREATORBUG-31345

                            For CDB Qt Creator 14 doesn't come with the 32 bit dll that's used by x86 cdb to load the project.

                            As it turns out the 64bit cdb, which is supposed to handle both x86 and x86_64, doesn't really work with 32 bit program.

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                            • A Offline
                              A Offline
                              AqUaReGiA
                              wrote on last edited by
                              #19

                              but it was working fine when I was using Qt Creator 13.0.2.

                              cristian-adamC 1 Reply Last reply
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                              • A AqUaReGiA

                                but it was working fine when I was using Qt Creator 13.0.2.

                                cristian-adamC Offline
                                cristian-adamC Offline
                                cristian-adam
                                wrote on last edited by
                                #20

                                @AqUaReGiA said in Qt Creator 14 is unable to debug a Qt 5 project:

                                but it was working fine when I was using Qt Creator 13.0.2.

                                You can still use Qt Creator 13.0.2 for that.

                                Qt Creator 14 has removed a component and this causes issues.

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                                • cristian-adamC cristian-adam

                                  I've made a screencast showcasing the issue with Qt 5.15.2 MinGW x64 and Qt Creator 14. And also showing how to use a newer debugger and have no issues:

                                  alt text

                                  Y Offline
                                  Y Offline
                                  Ycycz
                                  wrote on last edited by
                                  #21

                                  @cristian-adam thank

                                  1 Reply Last reply
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                                  • V Vdeilae

                                    wtf!I install QTCreater 13 and lunch it,link Qt Path,Guess what?It all works good!Don't use QTCreater 14 with QT5 Project!
                                    https://download.qt.io/official_releases/qtcreator/13.0/13.0.2/

                                    M Offline
                                    M Offline
                                    MaxQi
                                    wrote on last edited by
                                    #22

                                    @Vdeilae Is there a way to downgrade to 13 using the online installer? I don't want to install the standalone version.

                                    1 Reply Last reply
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                                    • E Offline
                                      E Offline
                                      EmirhanPolat
                                      wrote on last edited by EmirhanPolat
                                      #23

                                      I am having the same problem while using QT.6.7.2 and MinGW 11.2.0 for 64x. Since my gdb is already a newer version. I think I should'nt face the same problem but I do actually. I also checked if gdb is running python code:

                                      PS C:\Qt\Tools\mingw1120_64\bin> ./gdb

                                      GNU gdb (GDB) 11.2
                                      Copyright (C) 2022 Free Software Foundation, Inc.
                                      License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
                                      This is free software: you are free to change and redistribute it.
                                      There is NO WARRANTY, to the extent permitted by law.
                                      Type "show copying" and "show warranty" for details.
                                      This GDB was configured as "x86_64-w64-mingw32".
                                      Type "show configuration" for configuration details.
                                      For bug reporting instructions, please see:
                                      https://www.gnu.org/software/gdb/bugs/.
                                      Find the GDB manual and other documentation resources online at:
                                      http://www.gnu.org/software/gdb/documentation/.
                                      For help, type "help".
                                      Type "apropos word" to search for commands related to "word".

                                      (gdb) python print("Python 3 is working")
                                      Python 3 is working

                                      Any suggestions?

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                                      • aha_1980A Offline
                                        aha_1980A Offline
                                        aha_1980
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #24

                                        @EmirhanPolat: Please have a look in View > Views > Debugger Log.

                                        PS: To really check the Python version, use something like python import sys; print(sys.version)

                                        Qt has to stay free or it will die.

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                                        • aha_1980A aha_1980 referenced this topic on
                                        • cristian-adamC cristian-adam

                                          I've made a screencast showcasing the issue with Qt 5.15.2 MinGW x64 and Qt Creator 14. And also showing how to use a newer debugger and have no issues:

                                          alt text

                                          A Offline
                                          A Offline
                                          AndyLC
                                          wrote on last edited by
                                          #25

                                          @cristian-adam Thanks!!!

                                          1 Reply Last reply
                                          0
                                          • houyaweiH houyawei referenced this topic on

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