If this template helps then use it. If not then just delete and start from scratch. OS (e.g. Win10): Mac OS 15.7.3 PsychoPy version (e.g. 2024.2.4 Py 3.8): 2025.2.4 Standard Standalone Installation? (y/n) Y If not then what?: Do you want it to also run online? (y/n) N What are you trying to ach…

Error opening Plugins/Packages Manager

wakecarter January 15, 2026, 10:44pm 2

Try deleting appData.cfg to reset the preferences.

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