最近更新了QTCreater14版本，更新后QT5.15.2的项目无法正常调试，经过证实，发现是因为QTCreater14版本存在问题，gdb调试时无法正确使用python版本。
gdb错误信息：
>&"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 FAILEDd[GDB] State changed from EngineSetupRequested(1) to EngineSetupFailed(2)<Debugging has failed.d[GDB] State changed from EngineSetupFailed(2) to DebuggerFinished(16)无奈只能换回QTCreater13.0.版本，切换之后恢复正常。下载链接:
https://download.qt.io/official_releases/qtcreator/13.0/13.0.2/
下载安装好后只需要手动选择一下之前已经安装好QT Kits的目录就好了，不需要再把Kits重新安装一遍。
