Hello hope all is well! I have synced my PsychoPy experiment to Pavlovia, but when I try to pilot the experiment, I get stuck at initialising. I have figured out how to determine where the problem is, and have found the problematic line of code (illegal return error). It is not a builder coding erro…

What is the error message? If it’s “illegal return” then there’s probably a stray bracket in your custom code. [image] Illegal Return Statement for "return psychoJS.quit" Online experiments URL of experiment: https://pavlovia.org/run/Jordan_Gallant/megansMazeTask/html/ …

Thanks so much for the quick reply. The error message does say “illegal return statement” and gives the line of code that is an issue (3087, the one in the photo in the original post), and it doesn’t look like the brackets are imbalanced (we had checked this too)…could it be somEwhere else that it’s…

I do have it on Auto->JS however this is not an error with the builder code I wrote, it is with the automatically generated JavaScript code (in the separate JavaScript file I believe). I’m not sure how to find or fix the imbalance with this. Thanks for the help again!

Please could you upload your psyexp file?

Please find the psyexp file below. J trials1-16 (low on left)?.psyexp (338.2 KB)

I’ve looked at one code component so far and I can see why it won’t work online. [image] What is event16? [image] Among other things, you are recreating your mouse component. [image] Wakefield's Daily Tips Blog Reuse your routines If you are tempted to c…

It used to just be event for every routine, but when trying to run it on Pavlovia it told me event could not be repeated in each routine (it got stuck on initialising and this was the problem), so I changed them all to have numbers at the end to make them different. It seemed to fix the issue becaus…

Do you mean event as in the event module? Please look at my Builder isn’t Coder tip and delete them all.

Okay I deleted all of the event codes in the builder code and it runs on my desktop! It still does not run on Pavlovia though and gets stuck on initialising. The error is still with line 3087 of the JavaScript code I attached the image of.

PsychoPy task will not run when synced to Pavlovia (stuck at initialising)

Online experiments

wakecarter March 5, 2025, 9:00pm 4

Yes, the imbalance is almost certainly in code that you have written where you haven’s use an Auto code compoenent.

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PsychoPy task will not run when synced to Pavlovia (stuck at initialising)

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