Knowledge base for software setup, errors, and daily tool work.

Fix VS Code Terminal Not Opening Due to Settings

You click the terminal panel icon in VS Code, but nothing happens. The panel doesn't slide up...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Cloudflare 521 Error: Troubleshooting and Fixes

When you see a 521 Web Server Is Down error, it means Cloudflare cannot establis...

Fix npm run build Failed with PostCSS Error

You run npm run build and see a PostCSS error. This often happens after updating pac...

Fix Missing Edge Sync Option in Settings

You open Edge settings to turn on sync, but the sync option is gone. This usually happens after a...

How to Fix the Git index.lock File Exists Error

You're in the middle of a Git operation—commit, merge, or rebase—and Git stops with: fa...