Error when preparing to pilot the study

Hi there,

I am trying to set up an experiment online. This experiment has no code component and can run locally. However, after uploading the experiment to Pavlovia, I am not able to test it online by clicking the pilot button, with the error:

“Unable to prepare the pilot URL for this experiment.
If the error persists, contact Pavlovia’s administrator.” (as picture)

Since I cannot generate the URL for the experiment, the link to the dashboard is here: Pavlovia, but I don’t think I am able to make the dashboard public.

When I try to open the index.html file locally, the page starts with “initializing the experiment…”, but nothing shows up later. Is this normal, or potentially related to the problem earlier?

Thanks for your help in advance!


Hello @AmberG,

Are you still experiencing that error? As far as I can ascertain, the experiment is running at
One issue, however, is that the resource: sub_file/sub.csv is missing, as per the popup dialog and console error message:

FATAL dialog core.js 603 | {“origin”:“TrialHandler.importConditions”,“context”:“when importing condition: sub_file/sub.csv”,“error”:{“origin”:“ServerManager.getResource”,“context”:“when getting the value of resource: sub_file/sub.csv”,“error”:“unknown resource”}}