The Microsoft Git Credential Manager (GCM) securely stores and automates authentication tokens for hosting services like GitHub, GitLab, and Azure DevOps. When GCM encounters configuration, browser, or token synchronization mismatches, it stops working and drops fatal terminal messages.
Five of the most common errors in Git Credential Manager for Windows and how to fix them are detailed below. 1. fatal: Authentication failed
This is the most common error. It happens when your repository host rejects the credentials provided by GCM, usually because your remote password or Personal Access Token (PAT) has expired. The Fix:
Open the Windows Control Panel and search for Credential Manager. Click on Windows Credentials.
Locate the entry corresponding to your host (e.g., git:https://github.com or git:https://azure.com). Click Remove to delete the cached, invalid credential.
Run git pull or git push in your terminal to trigger a fresh browser authentication prompt. 2. git: ‘credential-manager’ is not a git command
This error occurs if your global configuration references an outdated helper name (like credential-manager or credential-manager-core) after you update Git or migration paths change. ‘credential-manager’ is not a git command – Stack Overflow
Leave a Reply