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Cura (all versions) fail to start after Windows crash with profile corruption

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Hello!  My computer got a BSOD and when I logged back in some of my Windows settings had been reverted, my Google Chrome profile was gone, etc.    I assume environment variables and the like might be messed up too.  Maybe Python and stuff too. Just a backstory.  Cura worked great before the crash.

When I try to launch Cura (2.6, 2.7 or 3.0) nothing happens.  No splash screen or anything.  I deleted the appdata/local/cura folders and when I launch Cura I get a stderr.log (which is empty) and a stdout.log which is pasted below.  No other files or folders.  I've tried reinstalling but this is all that happens.




UM.Qt.QtApplication.__init__ [55]: Adding QT5 plugin path: C:\Program Files\Ultimaker Cura 3.0\PyQt5\pluginsUM.Qt.QtApplication.__init__ [65]: Adding QT5 plugin path: C:\Program Files\Ultimaker Cura 3.0\PyQt5\pluginsUM.Resources.__initializeStoragePaths [342]: Initializing storage pathscura.CrashHandler.show [39]: An uncaught exception has occurred!cura.CrashHandler.show [42]: Traceback (most recent call last):cura.CrashHandler.show [42]:   File "", line 969, in _find_and_loadcura.CrashHandler.show [42]:   File "", line 958, in _find_and_load_unlockedcura.CrashHandler.show [42]:   File "", line 664, in _load_unlockedcura.CrashHandler.show [42]:   File "", line 634, in _load_backward_compatiblecura.CrashHandler.show [42]:   File "__startup__.py", line 12, in cura.CrashHandler.show [42]:   File "", line 969, in _find_and_loadcura.CrashHandler.show [42]:   File "", line 958, in _find_and_load_unlockedcura.CrashHandler.show [42]:   File "", line 664, in _load_unlockedcura.CrashHandler.show [42]:   File "", line 634, in _load_backward_compatiblecura.CrashHandler.show [42]:   File "Console.py", line 24, in cura.CrashHandler.show [42]:   File "X:\3.0\build\inst\bin\cura_app.py", line 81, in cura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Application.py", line 321, in getInstancecura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\cura\CuraApplication.py", line 206, in __init__cura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Qt\QtApplication.py", line 70, in __init__cura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Application.py", line 89, in __init__cura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Resources.py", line 65, in getPathcura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Resources.py", line 117, in getStoragePathcura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Resources.py", line 154, in getStoragePathForTypecura.CrashHandler.show [42]:   File "X:\3.0\build\inst\lib\python3.5\site-packages\UM\Resources.py", line 352, in __initializeStoragePathscura.CrashHandler.show [42]:   File "ntpath.py", line 113, in joincura.CrashHandler.show [42]:   File "genericpath.py", line 143, in _check_arg_typescura.CrashHandler.show [42]: TypeError: join() argument must be str or bytes, not 'NoneType'


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