Running Experiment in Builder Does not work

[wakecarter]

That’s a very old version and won’t necessarily run experiments from more recent versions.

Experiment built on psychopy 2023 cannot run on another computer installed with psychopy 2020

If this template helps then use it. If not then just delete and start from scratch. OS Win10: PsychoPy version : PsychoPy 2020.2.10 I built a Exp on my coworker’s computer, which installed the newest psychopy(2023), it runs well. But then I failed in running it on mine, which is an old version psychopy(2020.2.10). I didn’t use any fancy component, just some images, keyboards, texts, and loops. Still, it fails. Should I install a new psychopy, too? should I unload the old one before I instal…

I have fixed this before by editing the psyexp file directly but I couldn’t find my post about it now.