Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run git merge and get an error: fatal: refusing to merge unrelated histories...

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

Git Merge Conflict Checklist Before Merging You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

Fix 'Python' Command Not Found in Windows 10 64-bit You open Command Prompt, type python, and see 'python' is not recogniz...

Fix Chrome Access Violation Error on Windows 7 If you see an "access violation" error in Chrome on Windows 7, it usually means Chrome tr...

Fix Nginx 'Permission Denied' Upstream Errors When Nginx logs permission denied while connecting to an upstream (e.g., a Unix sock...