Errors Pushing to Pavlovia PsychoPy 2021.1.0

Online experiments
1

Description of the problem: Upgraded to newest version of PsychoPy on macOS Catalina Every time I try to push an experiment to Pavlovia I get the below error:

Traceback (most recent call last):
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/app/builder/builder.py”, line 1319, in onPavloviaSync
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/app/builder/builder.py”, line 759, in fileExport
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/scripts/psyexpCompile.py”, line 73, in generateScript
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/scripts/psyexpCompile.py”, line 242, in compileScript
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/scripts/psyexpCompile.py”, line 214, in _makeTarget
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/experiment/_experiment.py”, line 265, in writeScript
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/experiment/routine.py”, line 287, in writeRoutineBeginCodeJS
  File “/Applications/PsychoPy.app/Contents/Resources/lib/python3.6/psychopy/experiment/components/code/__init__.py”, line 231, in writeRoutineStartCodeJS
TypeError: __str__ returned non-string (type NoneType)

Anyone know a fix for this?

2

Could you tell us exactly the version number you’re using please? And you might need to upload a copy of the experiment for us to investigate (assuming that other experiments are working). Preferably cut that down a a minimal working example, e.g. the issue is with one of hte code components so maybe you could just include that?

3

Hi Jon,

Sorry for not including the experiment (please see attached).

I am using:
PsychoPy: 2021.1.0

macOS: Catalina V10.15.6

The experiment is very simple: 3 words appear and there is a break every Nth trial.

The error occurs on several of my macs. I have not tested it on PC. test_break.psyexp (12.8 KB) test_break.psyexp (12.8 KB) test1.xlsx (8.4 KB)

4

This is the only line of code:

Screen Shot 2021-02-24 at 6.02.52 PM
Screen Shot 2021-02-24 at 6.02.52 PM1381×771 51.7 KB

5

Ah, OK, I can replicate the problem by adding your Code Component. Working on it now

6

I can see the problem - there’s a new bug in how to code component is defined (when it gets created for the first time in PsychoPy 2021.0 or 2021.1.1). I’ll get a bug fix out very soon but, as a quick fix yourself, you can open your experiment file in a text editor and, for each parameter in the code component, change the valType from ‘code’ to ‘extendedCode’ and then reload the experiment in the Builder.

Sorry for the faff

3 Likes
7

Thanks for looking into this, @jon! I now see a whole host of posts regarding the same issue–sorry.

8

No, no, it’s fine. Yours was the first I saw for this particular error and a few others followed. I’m currently uploading release 2021.1.2 that should fix it

9

Hi, I am suddenly experiencing a similar problem in v 2021.1.3, but it is with initCodeJS instead of writeRoutineBeginCodeJS.

I have already synchronized this project a few times without issues, and this time I just wanted to push a small change in the slider width; something I’d already done.

EDIT: I found the problem; see this thread: Error syncing "TypeError: __str__ returned non-string (type NoneType)" - #7 by aisa2