Checklists for software errors, setup, and tool workflows.

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Latest checklists

You run docker compose up and get an error like Error: Port 3306 is already al...

Fix Windows Update Error 0x80070002 on Windows 10
When Windows Update fails with error 0x80070002, it usually means the system can't find the u...

Fix Permission Denied on chmod in VS Code Terminal
You're running chmod in the VS Code integrated terminal and seeing 'permissi...

Fix Docker 'No Space Left on Device' Volume Error
When Docker reports 'no space left on device' for a volume, the symptom is often a contai...

Fix Python UnicodeDecodeError When Parsing JSON
You're parsing a JSON file in Python and hit UnicodeDecodeError: 'utf-8' codec ...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused
If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...