Checklists for software errors, setup, and tool workflows.

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Latest checklists

When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...

Fix Chrome Certificate Error Due to Antivirus Interference
You're browsing in Chrome and suddenly see a red warning: Your connection is not priv...

Python Virtual Environment Not Activating on Mac: Fixes
You open Terminal, run source venv/bin/activate, and nothing happens—or you get an e...

Fix Node Sass Build Failed with Visual Studio Build Tools
When you see node-sass build failed during an npm install, it usually means the nati...

Fix VSCode Source Control Not Detecting Changes
You're working in Visual Studio Code, you edit a file, but the Source Control view shows no c...

Fix Windows 11 Installation Assistant Stuck at 99%
You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...