How to Fix Git 'index.lock' File Exists Error
When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesPassing Environment Variables to Docker Compose: A Practical Guide
When you run a multi-container application with Docker Compose, you often need to configure servi...
Fix Git 'index.lock' Error in VS Code
If you see the error 'fatal: Unable to create 'path/.git/index.lock': File exists'...
Docker Desktop Engine Stopped: Log Location & Troubleshooting
When Docker Desktop reports that the engine has stopped, you often need to check the logs to unde...
Fix Docker Compose 'Port Already Allocated' for MySQL
You run docker compose up and get an error like Error: Port 3306 is already al...
Fix Git SSL Certificate Problem: Unable to Get Local Issuer
You try to clone or pull from a remote repository and get: fatal: unable to access 'htt...
Issue queue
SitemapTroubleshoot Docker Compose Missing Environment Variables
Nginx Upstream Server Connection Refused Guide
Troubleshooting DNS Probe Finished NXDOMAIN on Custom Servers
Git Push Rejected Non Fast Forward Fix
Fix Docker Container Exiting Right After Start
Resolve Git Push Rejected Error
Taskbar Icons Disappeared After Uninstall – Quick Fixes
Nginx Too Many Redirects? Here's How to Fix It
Troubleshooting Error 0x800f081f After Windows Update
How to Fix Explorer Restart Loop After Windows Update
Fix Docker Compose Port Already Allocated Error
Troubleshooting Docker Network Not Found in Linux
Nginx Upstream Server Connection Refused Guide
Troubleshooting DNS Probe Finished NXDOMAIN on Custom Servers
Git Push Rejected Non Fast Forward Fix
Fix Docker Container Exiting Right After Start
Resolve Git Push Rejected Error
Taskbar Icons Disappeared After Uninstall – Quick Fixes
Nginx Too Many Redirects? Here's How to Fix It
Troubleshooting Error 0x800f081f After Windows Update
How to Fix Explorer Restart Loop After Windows Update
Fix Docker Compose Port Already Allocated Error
Troubleshooting Docker Network Not Found in Linux