npm run build Failed: Troubleshooting Checklist
When npm run build fails, the error message can be cryptic. This checklist walks thr...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix git index.lock File Exists Error on Windows
If you see fatal: Unable to create 'index.lock': File exists. when running G...
Docker Container Exits Immediately on Mac: Fixes
You start a Docker container on your Mac, and it stops within seconds. The container exits immedi...
Chrome Sync Not Working on School Chromebook: Fixes
If your Chrome browser isn't syncing bookmarks, passwords, or history on a school Chromebook,...
How to Uninstall a Windows Update in Safe Mode After a Blue Screen
If you're seeing a blue screen after installing a Windows update, the update itself may be th...
Fix Windows Defender Real-Time Protection Not Starting
If you see a yellow warning or a message that real-time protection is off, Windows Defender’s cor...
Issue queue
SitemapHow to Change Git Remote Origin When It Already Exists
Windows 11 Update Error 0x80070002: Causes and Fixes
Git SSL Certificate Problem Unable to Get Local Issuer Fix
How to Enable Real-Time Protection in Defender
How to Fix IPv4 Settings in Windows 11 for WiFi
Troubleshooting Git LFS Authentication on Push
Fix Windows 11 Setup Stuck at 99%
Mac M1 Docker Pull Permission Denied Guide
Cloudflare Wildcard Record: Setup and Troubleshooting
Fix Bluetooth Not Showing in Device Manager on Windows 11
Diagnosing and Repairing Chrome Memory Leaks
Nginx Config Test Fails in Docker Container
Windows 11 Update Error 0x80070002: Causes and Fixes
Git SSL Certificate Problem Unable to Get Local Issuer Fix
How to Enable Real-Time Protection in Defender
How to Fix IPv4 Settings in Windows 11 for WiFi
Troubleshooting Git LFS Authentication on Push
Fix Windows 11 Setup Stuck at 99%
Mac M1 Docker Pull Permission Denied Guide
Cloudflare Wildcard Record: Setup and Troubleshooting
Fix Bluetooth Not Showing in Device Manager on Windows 11
Diagnosing and Repairing Chrome Memory Leaks
Nginx Config Test Fails in Docker Container