Fix Git 'index.lock file exists' Error
When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows 11 Wi-Fi No Internet by Disabling IPv6
If your Windows 11 PC connects to Wi-Fi but shows 'No internet' while other devices work ...
Fix npm run build Failed After Git Pull
You pulled the latest code from Git, ran npm run build, and got errors. This is a co...
Fix Cloudflare Wildcard Subdomain Redirect Loop
If you're seeing a redirect loop when accessing subdomains like app.yourdomain.com
Windows Search Indexing Setup: A Practical Guide
If Windows Search is slow or returning no results, the indexing service may not be set up correct...
Fixing Nginx 502 Bad Gateway with Docker and Load Balancers
If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...
Issue queue
SitemapFix Python Memory Errors on Mac with Large Files
Docker Compose .env File Not Working
Nginx -t Test Failure: Troubleshooting Checklist
How to Migrate and Push with Git LFS
Docker Volume Permission Denied Troubleshooting
How to Resolve Docker Permission Denied on Start
Docker Registry Read-Only Access Setup
Fix Windows Search by Resetting Index
How to Exit Git Detached HEAD State
Taskbar Icons Not Showing in Windows 11: Quick Fixes
Guide to Configuring Windows Search Index
Fix Node.js Heap Out of Memory: Practical Steps
Docker Compose .env File Not Working
Nginx -t Test Failure: Troubleshooting Checklist
How to Migrate and Push with Git LFS
Docker Volume Permission Denied Troubleshooting
How to Resolve Docker Permission Denied on Start
Docker Registry Read-Only Access Setup
Fix Windows Search by Resetting Index
How to Exit Git Detached HEAD State
Taskbar Icons Not Showing in Windows 11: Quick Fixes
Guide to Configuring Windows Search Index
Fix Node.js Heap Out of Memory: Practical Steps