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Unspecified JS Error for experiment without additional code component (pilot)

Dear all,

I am currently in the process of trying to pilot an experiment on Pavlovia but seem to encounter a recurring issue of the Unspecified JS error window popping up each time I try to press the space bar to go from one part (explanation of the task) of the experiment to another (the actual experiment).

I used the Builder to develop my study, did not add any code component, and the answers are given by pressing keyboard keys. I also exported the latest version of my study in the html folder. Until I try to pilot it on Pavlovia everything works fine locally.

The experiment is as such: presentation of the instructions, then the task itself starts with a mask, a brief visual presentation, then mask again with a sound presented simultaneously. After that, a waiting screen appears until the participant has given an answer by pressing the “s” or “l” key.

I would think it is a quite basic script to run and really am at a loss as to how to solve this issue.

I do not know JS at all, so trying to decipher the errors it sends or checking the code is not an option for me.

Thank you in advance for your help

While you may not have a code component, it is possible that you have a variable component or custom Python code in another component. Are there any aspects which aren’t just about reading trial info from spreadsheets?