Git Push Rejected Non Fast Forward: Troubleshooting Checklist
If you see ! [rejected] main -> main (non-fast-forward) when running
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFixing Cloudflare 521 Error: Origin Unreachable
When you see Cloudflare error 521, it means your origin server is refusing the connection from Cl...
Fix Docker Desktop Engine Stopped After Sleep Mode
You wake your computer from sleep, open Docker Desktop, and see the engine is stopped. The whale ...
Fix VS Code Breakpoint Not Hit in Remote Development
You set a breakpoint in VS Code while working in a remote environment—SSH, container, or WSL—but ...
Fix Edge Sync Not Working Due to Third-Party Antivirus
If your Microsoft Edge browser stops syncing bookmarks, passwords, or settings after installing o...
Fix Git SSL Certificate Problem on Corporate Networks
If you see git SSL certificate problem: unable to get local issuer certificate while...
Issue queue
SitemapHow to Fix VS Code Source Control Not Detecting Changes
How to Rebuild Search Index in Windows
How to Turn IntelliSense Back On in VS Code
Cloudflare Wildcard Subdomain CNAME Setup Guide
How to Merge Unrelated Histories in Git
Windows 11 BSOD After Update: Bootable USB Repair Guide
Fix VSCode Terminal Not Opening with Python
Chrome ERR_CONNECTION_RESET After Router Reboot Fix
How to Stop Chrome Black Screen Flickering
Windows 11 Blue Screen After Update: Step-by-Step Fix
Fix Windows 11 Installation Assistant Stuck at 99%
Troubleshoot Windows 11 Assistant Hanging at 99%
How to Rebuild Search Index in Windows
How to Turn IntelliSense Back On in VS Code
Cloudflare Wildcard Subdomain CNAME Setup Guide
How to Merge Unrelated Histories in Git
Windows 11 BSOD After Update: Bootable USB Repair Guide
Fix VSCode Terminal Not Opening with Python
Chrome ERR_CONNECTION_RESET After Router Reboot Fix
How to Stop Chrome Black Screen Flickering
Windows 11 Blue Screen After Update: Step-by-Step Fix
Fix Windows 11 Installation Assistant Stuck at 99%
Troubleshoot Windows 11 Assistant Hanging at 99%