Unknown software problem when syncing to Pavlovia

URL of experiment: possibility_task [PsychoPy]

Description of the problem:

I have an experiment that runs well locally but when I try to upload to Pavlovia it doesn’t recognise the software as JS and so it cannot run.

I have resaved everything in a new folder and started again. I have reinstalled PsychoPy. I have checked the github and there is a js file there so I am a bit of a loss what to do next.


You say there is a js file online. Pavlovia is looking for https://run.pavlovia.org/TomOrmerod/st3/possibility_task.js What is the name of your JS file?

One possibility is that you might need to change the name of the experiment in Experiment Settings to the name of your JS file instead of possibility_task (if that’s what it is currently)

Yes, that was exactly that - I had copied another project to alter it slightly but I hadn’t changed the experiment name.

Thank you so much for your help!!