Checklists for software errors, setup, and tool workflows.

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3. Apply

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Latest checklists

You try to merge branch A into branch B, but Git reports a merge conflict. This is common when bo...

When you run git clone over HTTPS and see an error like Failed to connect to g...

Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...

Fix 'Permission Denied' in VS Code When File Isn't Read-Only
You're editing a file in VS Code and get a 'Permission denied' error when saving, eve...

Docker Desktop Engine Not Responding: Practical Fixes
You click Start in Docker Desktop, the whale icon spins, but nothing happens — o...

How to Fix Nginx Upstream Connection Refused Error
If you're seeing upstream connection refused in your Nginx error logs, it usuall...