Coding⏱️ 3 min read📅 2026-06-03

How to Fix: fatal: The current branch master has no upstream branch

Git push error fix: Authentication failed

Quick Answer: The issue is likely due to authentication issues with GitHub. Try setting up SSH keys on your local machine and then try again.

The error 'fatal: The current branch master has no upstream branch' occurs when you attempt to push changes to a GitHub repository without first setting up an upstream remote branch. This issue affects developers who have not yet connected their local Git repository to the remote GitHub repository.

This error can be frustrating, especially for developers who are new to Git and GitHub. However, by following these steps, you will be able to resolve this issue and successfully push your changes to the remote repository.

💡 Why You Are Getting This Error

  • The primary reason why this error happens is that the local branch (in this case, master) has not been linked to a remote branch on GitHub. This can occur when a developer creates a new repository on GitHub without setting up the local branch to track the remote branch.
  • An alternative reason for this error could be due to the fact that the remote repository does not exist or is not properly configured.

🛠️ Step-by-Step Verified Fixes

Linking the Local Branch to the Remote Branch

  1. Step 1: Open a terminal and navigate to your local repository. Type 'git branch -a' to list all the branches in your local repository. Identify the name of the branch that corresponds to the remote branch on GitHub.
  2. Step 2: Type 'git push --set-upstream origin ' to link the local branch to the remote branch on GitHub, replacing '' with the actual name of the branch.
  3. Step 3: Once you have linked the branches, you can attempt to push your changes to the remote repository using the command 'git push'.

Resolving Authentication Issues

  1. Step 1: Check if you have correctly configured your GitHub credentials. Ensure that your username and password are correct.
  2. Step 2: If you are still experiencing authentication issues, try deleting the existing remote branch using 'git remote remove origin'. Then, re-add the remote branch using 'git remote add origin '.
  3. Step 3: If none of these steps resolve the issue, you may need to reset your GitHub credentials or seek assistance from a colleague who has successfully authenticated with GitHub.

🎯 Final Words

By following these steps and resolving any authentication issues that may arise, you should be able to successfully push your changes to the remote repository. Remember to test your code thoroughly before pushing it live to ensure that it functions as expected.

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