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 notesFix Git Clone Timeout by Adjusting Config Settings
When git clone fails with a timeout error, it's often because the connection is ...
Fix Node Version Incompatibility When Running npm install
You run npm install and get an error like engine "node" is incompatibl...
Fix ERR_NAME_NOT_RESOLVED in Chrome: Network Troubleshooting Guide
When Chrome displays ERR_NAME_NOT_RESOLVED, it means the browser cannot translat...
Fix VS Code Git Authentication Failed with Two-Factor Auth
When you have two-factor authentication (2FA) enabled on your Git service (GitHub, GitLab, Bitbuc...
Fix Git Push Rejected Non Fast Forward Error
When you try to push commits to a remote repository and see “rejected – non-fast-forward”, it mea...
Issue queue
SitemapDocker Build Canceled: Troubleshooting Checklist
Chrome Proxy Error ERR_CONNECTION_RESET Guide
Node.js Garbage Collection Tuning to Avoid Heap Out of Memory
Troubleshooting Git Merge Permission Errors
Windows Explorer Keeps Restarting? Run SFC Scannow
Python Virtual Environment Not Activating on Ubuntu: Fixes
Firefox Secure Connection Failed: Practical Fixes
How to Resolve npm install Permission Denied in CI/CD
Windows 11 Update Stuck at 0%? Try a Clean Boot
DNS_PROBE_FINISHED_NXDOMAIN: Step-by-Step Checklist
Error 0x80070002 Windows Update: Causes and Fixes
Fix Nginx Configuration Test Failure from Rewrite Rules
Chrome Proxy Error ERR_CONNECTION_RESET Guide
Node.js Garbage Collection Tuning to Avoid Heap Out of Memory
Troubleshooting Git Merge Permission Errors
Windows Explorer Keeps Restarting? Run SFC Scannow
Python Virtual Environment Not Activating on Ubuntu: Fixes
Firefox Secure Connection Failed: Practical Fixes
How to Resolve npm install Permission Denied in CI/CD
Windows 11 Update Stuck at 0%? Try a Clean Boot
DNS_PROBE_FINISHED_NXDOMAIN: Step-by-Step Checklist
Error 0x80070002 Windows Update: Causes and Fixes
Fix Nginx Configuration Test Failure from Rewrite Rules