Strange error when trying to play video online - Pavlovia

Online experiments
1

OS (e.g. Win10): Win10
PsychoPy version (e.g. 1.84.x): v2021.2.3
What are you trying to achieve?: Trying to run an experiment online that runs successfully locally.

What did you try to make it work?: I’ve changed all the python code to remove incompatible libraries (such as Pandas etc.) and removed import calls.

What specifically went wrong when you tried that?:
Include pasted full error message if possible. “That didn’t work” is not enough information.

The experiment runs fine through the 1st 2 text screens and appears to display an image (a black square) successfully but then crashes when it’s supposed to display an animation (video) stimulus.

The resulting error doesn’t make sense - if I had to guess it looks like it’s some kind of meta-data related error.

Here is a screenshot of the error:

Video_Error_Browser_Console_Included
Video_Error_Browser_Console_Included1275×953 50.3 KB

Any help or insight would be greatly appreciated.

Cheers.

2

What variable are you using for the video file? I think it’s the same as something else in the experiment. Try changing it to something other than movie (if that’s what it is).

3

The error was not related to the variable used for the video file. It was apparently related to the use of .avi video files. I uploaded a random .mp4 video file and it worked fine. I’ll convert all the videos to MP4 and see how that goes.

I’ll marked this as a solution once I’ve tested the converted files.

Edit Yeah, once I replaced the avi video files with mp4 versions they played fine.