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 notesHow to Fix Cloudflare 521 Error Due to Proxy Issues
If you see a Cloudflare 521 error, the message usually says something like “Web server is down.” ...
Fix VSCode Save File Permission Denied Error
You try to save a file in Visual Studio Code and see 'Permission denied'. The file might ...
Fix npm ENOWENT Package.json Not Found on Mac
If you see 'ENOENT: no such file or directory, open /path/to/package.json' when running n...
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 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...
Issue queue
SitemapTroubleshooting Port Already Allocated in Docker Compose
Fix Python Virtual Environment Activation on Ubuntu
How to Debug Docker Build Context Canceled
Avoiding Python Requests Timeout Errors on Slow Networks
How to Unstick Windows 11 Installation at 99%
Fix Nginx 502 Bad Gateway with Docker and PHP-FPM
Resolve Chrome Access Violation Error in Windows 10
Update Git SSL Certificates to Fix 'unable to get local issuer'
How to Restore Node.js IntelliSense in VSCode
Fix pnpm ERR_PNPM_NO_OFFLINE_META: Step-by-Step Guide
Chrome Update Broke DNS? Try These Fixes
Resolve Nginx 502 Bad Gateway in Docker on Ubuntu
Fix Python Virtual Environment Activation on Ubuntu
How to Debug Docker Build Context Canceled
Avoiding Python Requests Timeout Errors on Slow Networks
How to Unstick Windows 11 Installation at 99%
Fix Nginx 502 Bad Gateway with Docker and PHP-FPM
Resolve Chrome Access Violation Error in Windows 10
Update Git SSL Certificates to Fix 'unable to get local issuer'
How to Restore Node.js IntelliSense in VSCode
Fix pnpm ERR_PNPM_NO_OFFLINE_META: Step-by-Step Guide
Chrome Update Broke DNS? Try These Fixes
Resolve Nginx 502 Bad Gateway in Docker on Ubuntu