Wakefield's Daily Tips

RangeError: Maximum call stack size exceeded

This error has a much clearer cause if you try running the experiment locally.

If you see a display like this, then it means you have used the same variable name for your text component as for the text itself.

This error isn’t spotted if you name the text component before you attach the spreadsheet. If you add the spreadsheet first, however, then an error message appears and the OK button is greyed out.

If you get the online error but the experiment runs locally, then the most likely reason is that you have a component name ending on an underscore (which gets removed online).