Error encounter when experiment run in online

Hi everyone,

My PschoPy experiment is full work in locally. but after uploading to the pavlovia following error occurred. I have re build a experiment and tried but still its not working.

Experiment Details : Number of routine = 7

Loops = 2

All the backgrounds are in images .

If this template helps then use it. If not then just delete and start from scratch.

OS (e.g. Win10):
PsychoPy version ( 2025.1.1):
Standard Standalone Installation? (y/n) If not then what?:
URL of experiment: Pavlovia
Do you want it to also run locally? Locally its’ working
What are you trying to achieve?:

What did you try to make it work?:

Link to the most relevant existing thread you have found:

What specifically went wrong when you tried that?

**
Error**

Unfortunately we encountered the following error:

  • ReferenceError: None is not defined

Try to run the experiment again. If the error persists, contact the experiment designer.

beadtask.psyexp (76.3 KB)

What variable is None?