Pavlovia error reporting


I am developing a speech reception threshold program in Builder. I wanted to check that what I’d done so far worked on Pavlovia, but, when I tried to upload to Pavlovia and run, I got the “Psychopy encountered an unhandled internal error…” message with the instruction to report the problem with the details to the developers. There was no indication how it should be reported, so I’m posting it here. The details are below…

Traceback (most recent call last):
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\app\builder\”, line 1232, in onPavloviaSync
retVal = pavlovia_ui.syncProject(parent=self, project=self.project)
File “C:\Program Files\PsychoPy3\lib\site-packages\psychopy\app\pavlovia_ui\”, line 497, in syncProject
syncFrame =
AttributeError: ‘NoneType’ object has no attribute ‘stdOut’

The program is at CullingJ/SRT, but it just gives a 403 error if I try to run it from the URL.


Hi, sorry that you’re running into sync issues. This issue concerns the #builder, could you please repost it in that builder category?

PS, I just found out I can use hashtags in replies; perhaps it’s already reposted automatically?

Ah, the hashtag just creates a link to the builder category. Please repost it over there and another dev will help you further. Might need to wait until next week though, the builder-specialists are bit busy today.