Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix Git Large File Push Permission Denied

When you run git push and get a permission denied error after adding a large file, t...

Fix Git 'index.lock file exists' Error

If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...

Fix Docker Nginx 502 Bad Gateway After Restart

After restarting your Docker containers, you might see a 502 Bad Gateway error when accessing you...

Nginx Upstream Connection Refused: Fixing localhost Errors

You set up an nginx reverse proxy to forward requests to a backend service on localhost, but ngin...

Git Push Rejected Non Fast Forward: How to Fix

You run git push and see: ! [rejected] main -> main (non-fast-forward)

VS Code Source Control Not Detecting Changes on Mac: Fixes
You make edits in VS Code on your Mac, but the Source Control panel shows nothing. No files appea...