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 notesFix Windows 11 Blue Screen After Update with System Restore
If you're seeing a blue screen after installing a Windows 11 update, System Restore can often...
Fix Git SSL Certificate Problem: Unable to Get Local Issuer
When Git reports SSL certificate problem: unable to get local issuer certificate, it...
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...
Fix VS Code Source Control Not Detecting Changes After Branch Switch
After switching branches in Git, VS Code's Source Control view sometimes stops showing change...
Fix VS Code IntelliSense Not Working After Update
After a VS Code update, IntelliSense may stop working—no suggestions, missing completions, or slo...
Issue queue
SitemapFix 'Permission Denied' for Chrome Extensions
Docker Build Fails with Context Canceled Permission Denied
Nginx Static File Permission Error Troubleshooting
How to Resolve Docker Compose Port Already in Use
Python Virtual Env Activate Command Missing
Windows 10 Certificate Authority Invalid Error Fix
Fix npm install Incompatible Node Version Errors
Fix 'No Space Left on Device' with Docker Devicemapper
Fix Chrome Hardware Acceleration Black Screen in Windows 11
Chrome DNS Error Troubleshooting Guide
Stop Chrome Crashing When Opening on Windows 10
How to Resolve Nginx Permission Denied on Restart
Docker Build Fails with Context Canceled Permission Denied
Nginx Static File Permission Error Troubleshooting
How to Resolve Docker Compose Port Already in Use
Python Virtual Env Activate Command Missing
Windows 10 Certificate Authority Invalid Error Fix
Fix npm install Incompatible Node Version Errors
Fix 'No Space Left on Device' with Docker Devicemapper
Fix Chrome Hardware Acceleration Black Screen in Windows 11
Chrome DNS Error Troubleshooting Guide
Stop Chrome Crashing When Opening on Windows 10
How to Resolve Nginx Permission Denied on Restart