Hi @eunjin.ly,
Based on the error message, part of the experiment is not able to access some loop information (trialList) correctly. There are a lot of loops in the experiment, so I can’t tell if one or all are experiencing the problem. When there are problems with loops, there are a couple things I like to check:
- Are components which should change every trial are set to “update on repeat” instead of “constant”?
- Online-only: you might need to manually specify the multiple conditions files in ‘Additional Resources’
If there are still issues after that, a more complete error message with the line numbers might help narrow down which loop is currently running into problems.
-shabkr