Unhandled internal error when synchronising to Pavlovia

URL of experiment:

Description of the problem:

Hi all! I tried to synchronise my experiment on Pavlovia and an unhandled internal error occurred.

Traceback (most recent call last):
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/projects/pavlovia.py”, line 594, in getitem
KeyError: ‘path_with_namespace’

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/app/builder/builder.py”, line 1393, in onPavloviaRun
File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.8/psychopy/projects/pavlovia.py”, line 596, in getitem
AttributeError: ‘NoneType’ object has no attribute ‘attributes’

Any suggestions on how to resolve it? Thanks in advance!


Hi Luisa,

I’m experiencing a similar problem -how did you go about solving?

Best wishes,


Hi Seline,

I deleted the hidden .git folder and tried sync again.

Kind regards,

Fixed too! In my case, I realized that a space character had been accidentally added at the end of the experiment’s name provided in the parameters of the PsychoPy experiment