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Piloting Experiment

Description of the problem:
Hi! When I try and Pilot my experiment it says “We could not find a record for experiment designer: undefined
Please check the name and try again. If the error persists, contact Pavlovia’s administrator.”
Has anyone else had this issue and know how to fix it?

Hi, I’m having the same issue, can you check if pavlovia is generating a URL for your experiment? for me it isn’t:

It’s not generating a URL for me either. Any idea what to do?

No idea, haven’t been able to fix it but I see other people are having the same problem

Hello @amill66 and @caro,

We experienced a temporary issue owing to the timing of a scheduled change to the back-end code which, as luck would have it, coincided with the exact moment when one of the backend services restarted. We had not experienced that before. Now we know how to prevent that from happening again.
My apologies for the mishap!
The issue has been resolved as far as I can tell.


Hi! It’s still happening for me, is there something I should be doing to change it?

Could you change the status of your experiment to Inactive and then back to Piloting or Running? That should do the trick.