I can't open experiment file:AttributeError: 'NoneType' object has no attribute 'attributes'

[wakecarter]

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Unable to push online/create an online project/or synchronize

Hi, I encountered this error message when attempting any online action: swith user, create an online project or synchronization. Yet everything works well locally. Please give me some advise on this. Traceback (most recent call last): File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\projects\pavlovia.py”, line 620, in getitem value = dict.getitem(self, key) KeyError: ‘path_with_namespace’ During handling of the above exception, another exception occurred: Traceback (most recent c…