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 notesDNS Probe Finished NXDOMAIN: Troubleshooting Checklist
Seeing "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome means the browser couldn't find the IP...
Fix Nginx Upstream Connection Refused Timeout Error
When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...
npm package.json Not Found After npm init
You run npm init, answer the prompts, and then try to install a package or run a scr...
Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...
Fix Docker Build Context Canceled in Git Bash on Windows
If you're running Docker commands from Git Bash on Windows and see an error like contex...
Issue queue
SitemapCloudflare Origin Certificate Setup for Apache
Troubleshooting npm Build Failure Post Git Pull
Chrome Extensions Not Loading? 7 Fixes to Try
Resolve npm Global Permission Denied on macOS/Linux
Troubleshooting Permission Denied for pip install -r requirements.txt
Fix Chrome Hardware Acceleration Black Screen in Windows 11
Fix Docker Desktop Engine Stopped Hyper-V Error
Windows Update Error 0x80070002: Network Troubleshooting Guide
Docker Port Conflict: How to Resolve
How to Fix Permission Denied on Windows Shared Folders
Fix Node.js Heap Out of Memory in Production
Chrome Startup Error 0xc0000022 Troubleshooting
Troubleshooting npm Build Failure Post Git Pull
Chrome Extensions Not Loading? 7 Fixes to Try
Resolve npm Global Permission Denied on macOS/Linux
Troubleshooting Permission Denied for pip install -r requirements.txt
Fix Chrome Hardware Acceleration Black Screen in Windows 11
Fix Docker Desktop Engine Stopped Hyper-V Error
Windows Update Error 0x80070002: Network Troubleshooting Guide
Docker Port Conflict: How to Resolve
How to Fix Permission Denied on Windows Shared Folders
Fix Node.js Heap Out of Memory in Production
Chrome Startup Error 0xc0000022 Troubleshooting