@thomas.wortmann,Thank you for your reply. I tried this solution but I’m not sure if I understood the process correctly:
I copied this code:
self._project_folder = os.path.join(os.path.expanduser('~'), 'butterfly', self._project_name)
and pasted it into line 45 in runmanager_bluecfd.py:
C:\Users\Admin\AppData\Roaming\McNeel\Rhinoceros\5.0\scripts\butterfly*runmanager_bluecfd.py*
Are there any other steps that I missed to check?