Fix 'Permission Denied' When Installing Python Packages Without sudo - Fix Chrome Certificate Error: Invalid Authority with Proxy Settings-How to Fix Chrome Extensions That Won't Load
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.
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