Fix Git 'index.lock' Error in VS Code
If you see the error 'fatal: Unable to create 'path/.git/index.lock': File exists'...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listPython Virtual Environment Not Activating in Git Bash: Fixes
You're in Git Bash on Windows, you run source venv/Scripts/activate, and nothing...
Fix VS Code Source Control Not Detecting Changes on Ubuntu
If you're using VS Code on Ubuntu and the Source Control panel shows no changes even after ed...
Fix Permission Denied When Running Script in VS Code Terminal
You try to run a script in the VS Code integrated terminal and see 'permission denied'. T...
How to Fix Nginx 'Upstream Connection Refused' Error
When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...
Fix npm run build TypeScript Compilation Errors
You run npm run build and get a wall of TypeScript errors. The build fails, and you&...
Topic paths
Quick titles
Fix Permission Denied for Docker Mounted Volumes on LinuxNginx Redirect Loop: Common Causes and FixesNode Engine Check Failure: Causes and SolutionsWindows Explorer Crashing Fix: Performance TroubleshootingTroubleshooting Cloudflare Error 521 Post-UpdateFix Docker No Space Left on Device ErrorFix Docker Volume Permission Denied on LinuxDocker Compose Multi Env File Merge Fix