How to Resolve Git Credential Manager and Push Rejection Errors
If you're working with Git and suddenly encounter errors while pushing to your repository, it can be frustrating, especially if everything was working just fine a few days ago. Recently, I faced an issue when trying to push my latest changes to GitHub. This blog outlines the error I encountered and how I resolved it. Hopefully, this helps you save some time if you encounter something similar!
The Problem
When I attempted to push my changes, I received the following error:
`git: 'credential-manager' is not a git command. See 'git --help'.
The most similar command is
credential-manager-core
To https://github.com/username/repository.git
! [rejected] main -> main (fetch first)
error: failed to push some refs to 'https://github.com/username/repository.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.`
It was a two-fold issue:
A problem with Git Credential Manager.
A push rejection due to changes in the remote repository that I did not have locally.
Let's break down each issue and how to solve it.
Issue 1: Credential Manager Not Recognized
The first part of the error mentioned that credential-manager is not a valid Git command:
git: 'credential-manager' is not a git command.
This happens when Git tries to use a credential manager that is not installed or configured correctly. The most similar command suggested was credential-manager-core, which gave a hint that the credential system might be outdated or misconfigured.
Solution: Install Git Credential Manager Core
If you're using Git for Windows, Git Credential Manager Core often comes bundled with it. Ensure your Git version is up to date.
If not, you can manually install it from the official GitHub page.
After installing it, you should not see this error when pushing your code.
Issue 2: Push Rejection Due to Remote Changes
The second part of the error indicated that my push was rejected because the remote repository had changes that I didn’t have locally:
Updates were rejected because the remote contains work that you do not have locally.
Solution: Fetch and Pull the Latest Changes Here’s how to solve this issue step-by-step:
Fetch the latest changes from the remote repository:
git fetch origin main
Pull and merge those changes into your local branch:
git pull origin main
Push your changes:
git push origin main
Final Thoughts
This experience is a common one, especially if you work with teams or across multiple devices. It's important to remember that Git's push rejection is a safeguard to prevent you from accidentally overwriting important work done by others.
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