Checklists for software errors, setup, and tool workflows.

How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte

You're running a Python script and suddenly see:

UnicodeDecodeError: 'utf-8' ...

Fix npm run build Failures After npm install

After running npm install, you may find that npm run build fails with c...

Fix Git Authentication Failed in VS Code on Mac

If you see "Git authentication failed" when pushing or pulling in VS Code on a Mac, the p...

Fix Windows Security App Blocked by Antivirus

You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused

If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...

Fix Windows Cannot Access Shared Folder with Password Protected Sharing

You try to access a shared folder from another computer on your network and get an error: "Wi...