Launching Debugge error

Vdeilae

I try to build project,when i clicked "start debugging of startup project ", Compile output says：

12:27:52: Running steps for project untitled3...
12:27:52: Starting: "C:\QT\5.15.2\Tools\CMake_64\bin\cmake.exe" --build D:/Program/QT/untitled3/build/Desktop_Qt_5_15_2_MinGW_64_bit-Debug --target all
ninja: no work to do.
12:27:52: The process "C:\QT\5.15.2\Tools\CMake_64\bin\cmake.exe" exited normally.
12:27:52: Elapsed time: 00:00.

Global Debugger Log say：

>&"python from gdbbridge import *\n"
>&"Traceback (most recent call last):\n"
>&"  File \"<string>\", line 1, in <module>\n"
>&"  File \"C:/QT/5.15.2/Tools/QtCreator/share/qtcreator/debugger/gdbbridge.py\", line 16, in <module>\n"
>&"    from dumper import DumperBase, Children, TopLevelItem\n"
>&"  File \"C:/QT/5.15.2/Tools/QtCreator/share/qtcreator/debugger/dumper.py\", line 130, in <module>\n"
>&"    class DumperBase():\n"
>&"  File \"C:/QT/5.15.2/Tools/QtCreator/share/qtcreator/debugger/dumper.py\", line 3729, in DumperBase\n"
>&"    @functools.lru_cache(maxsize = None)\n"
>&"AttributeError: 'module' object has no attribute 'lru_cache'\n"
>&"Error while executing Python code.\n"
>166^error,msg="Error while executing Python code."

>&"python theDumper.loadDumpers({\"token\":167})\n"
>&"Traceback (most recent call last):\n"
>&"  File \"<string>\", line 1, in <module>\n"
>&"NameError: name 'theDumper' is not defined\n"
>&"Error while executing Python code.\n"
>167^error,msg="Error while executing Python code."
d[GDB] NOTE: ENGINE SETUP FAILED
d[GDB] State changed from EngineSetupRequested(1) to EngineSetupFailed(2)
<Debugging has failed.
d[GDB] State changed from EngineSetupFailed(2) to DebuggerFinished(16)

But if i click Run ,it can still running!btw, I install python 3.8.10 in my pc,How can i solve the strange problem?

Vdeilae

I use the latest QTCreater 14,if i use QT5.15.2 WinGW 8 Verson,this wield bug happens,but if i use other kit ,like QT6.5.3,it all runs good!

Vdeilae

OK,I am sure itsQT14's fault.The inner gdb can't work with QT5 Project.wtf!I install QTCreater 13 and lunch it,link Qt5.15.2 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/

Axel Spoerl

@Vdeilae said in Launching Debugge error:

I am sure itsQT14

Qt 5.15.2 is outdated, MinGW 8 isn't supported any more.
See here for supported platforms.

andr

You could try the following workaround: rename Creator's share/qtcreator/debugger directory into, say share/qtcreator/debugger-orig, and the rename share/qtcreator/debugger-with-python2 into share/qtcreator/debugger .

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

Make sure you have the MinGW 11.2.0 installed via Qt SDK, then clone the Qt 5.15.2 Kit and change the debugger. Problem solved.

cristian-adam

Alternatively you can get the GDB 11.2.0 from MinGW 11.2.0, which uses Python 3, and extract it on top your MinGW 8.1 installation.

I've packaged at https://bugreports.qt.io/browse/QTBUG-128398:

aha_1980

@cristian-adam Thanks, this looks like the preferred solution, as no other changes to the developed program are needed. E.g. newer compilers or runtime libraries can have unwanted side-effects.