Error when changing the status of experiment

Hello all,
I am faced with an error when trying to change the status of my experiment from inactive to piloting/running. I keep getting the following error message:

">>> [500] “unable to pull the project from the GitLab repository: Cmd(‘git’) failed due to: exit code(128)\n cmdline: git pull\n stderr: ‘fatal: refusing to merge unrelated histories’” ( #None )

If the error persists, contact Pavlovia’s administrator."

What can I do to fix the problem?

Hello Kati,

Can you give me the path of your experiment (username/experiment name), and I’ll have a look for you.


Thank you Kati.

The issue was related to the server move, and your deleting the experiment at an inopportune moment (this is absolutely not your fault, incidentally). The situation has been fixed. I just impersonated you and could change the status of both to PILOTING without issues.
Best wishes,



Hi there,

I am receiving the same message when I try to change my experiment to piloting. Could there be a similar problem? My experiment is laurajspeed/gp_mobile_v2



Hello @laurajspeed ,

It was indeed. I have just sorted it for you.


Dear Alain,

Thanks for your help. Unfortunately I had to change some details, and added other versions of the experiment, and I’m having the same problem again. Strangely it worked for one of them (laurajspeed/gp_laptop_v2).

Could you please check the following experiments?

Please let me know if there’s something I can do to avoid this happening.



Ah yes, same issue I am afraid. I sorted them for you.
I am also going through our logs to automatically sort all cases. But I believe you are all done.


Thank you for helping so quickly!