Git MCP Server Troubleshooting

🚀 Git MCP Server Troubleshooting Guide

This repository records common solutions to connection issues with the Git MCP server, based on real-world practical experience.

🚀 Quick Start

If you're experiencing connection issues with the Git MCP server:

1. Run our diagnostic script to identify common problems.
2. Follow the connection checklist for step-by-step verification.
3. Check the log analysis to understand error patterns.
4. Implement the resolution steps for specific issues.

✨ Features

Successful Installation Method

We've found a solution! After extensive troubleshooting, we discovered that the UVX installer fails to handle scoped package names correctly.

Refer to our Successful Installation Guide for the complete solution and steps.

📦 Installation

Common Connection Issues

1. Incorrect Package Name

npm error 404 Not Found - GET https://registry.npmjs.org/mcp-server-git - Not found

Problem: You're trying to use mcp-server-git, but this package doesn't exist in the npm registry. Solution: Use the correct package name format:

# For the UVX installer
uvx modelcontextprotocol-git-server

# For the NPM installer (if applicable)
npm install -g @modelcontextprotocol/git-server

2. UVX Package Name Format Issue

Error: Not a valid package or extra name: "@modelcontextprotocol/git-server"

Problem: UVX doesn't accept scoped package names with the @ symbol. Solution: Remove the @ symbol and use hyphens:

uvx modelcontextprotocol-git-server

3. Server Transport Closed

Server transport closed unexpectedly, which may be due to the process exiting prematurely.

Problem: The server process terminates prematurely before initialization. Potential Causes:

• Incorrect environment variables
• Port conflicts
• Missing dependencies
• Permission issues
• Incorrect tag configuration

4. Authentication Issues

Authentication issues typically display different types of errors than what we've seen. When you see:

Server disconnected. {"context":"connection"}

This indicates a connection issue rather than an authentication problem.

Additional Connection Issues

Port Conflicts

If Claude Desktop or other applications use the same port:

Error: EADDRINUSE: address already in use :::3000

Solution:

• Change the port in the configuration.
• Use the environment variable: GIT_SERVER_PORT=3001.
• Check and close conflicting processes.

Environment Variable Issues

Different Git providers require different environment variables:

• GitHub: GITHUB_TOKEN
• GitLab: GITLAB_PERSONAL_ACCESS_TOKEN (not GITLAB_ACCESS_TOKEN) Incorrectly named environment variables can cause connection failures.

Process Management Issues

Multiple server instances may interfere with each other:

• Stale lock files prevent new server instances from starting.
• Log file access conflicts occur when multiple processes try to write to the same log.
• Claude Desktop may start its own server instance, causing conflicts.

📚 Documentation

Tools and Resources

Verification Steps

After attempting to fix the issue, verify the connection by:

# Start the server with a custom port
uvx modelcontextprotocol-git-server --env GIT_SERVER_PORT=3001

# Restart the application
# Then check the Git tools in the feature menu

Look for these logs to indicate success:

[git-server] [info] Server started and connected successfully