Thank you @dvbridges. I suspected that as well.
However, when I set the output path, then the experiment no longer works in local debug mode - because the resources directory is not pre-loaded. I followed (your) instructions to remove the output path in order to make local debug mode work.
Is there no way to make both local debug mode and Pavlovia work simultaneously?
Note: I see a workaround is to copy files to both locations, and the output path has to be adjusted depending on where it’s running. This may be workable for me, but I expect that it will be too complicated for the other members of the team contributing to this experiment, as it’s very easy to get it wrong.
Note: I realize now that the error message I pasted above, the one marked red with an exclamation mark in the console, is actually just a warning, and unimportant. The more important message, lower down and marked in a less noticeable light brown, is:
Loading failed for the module with source “https://run.pavlovia.org/_yazanso/incentivized-flanker-w-perceptual-load/lib/core-2020.1.js”.
My apologies for missing that.