modelcontextprotocol/create-python-server

Getting error: No interpreter found for executable name `some-new-mcp` in managed installations or search path

tech4life87 opened this issue · 4 comments

tech4life87 commented

I am trying to create a new MCP server using both pip and uv create-mcp-server command and I am getting the error below.

No interpreter found for executable name mcp-server in managed installations or search path

Development setup.
python --version
Python 3.12.5

uv --version
uv 0.5.4 (c62c83c37 2024-11-20)

` ~/model_context_protocol uvx create-mcp-server
Installed 6 packages in 635ms
Creating a new MCP server project using uv.
This will set up a Python project with MCP dependency.

Let's begin!

Project name (required): mcp-server
Project description [A MCP server project]:
Project version [0.1.0]:
Project will be created at: /s3-mcp-server
Is this correct? [Y/n]: y
error: No interpreter found for executable name s3-mcp-server in managed installations or search path
❌ Error: Failed to initialize project.`

jspahrsummers commented

Could you please share the paths to your python and uv installations (which python and which uv)?

tech4life87 commented

Could you please share the paths to your python and uv installations (which python and which uv)?

I am using pyenv. But it seems to be an issue with using virtualenv with pyenv
~/.pyenv/shims/python

virtualenv path
/Users/user/.pyenv/versions/3.12.5/envs/some-new-mcp

tech4life87 commented

As a workaround to this issue.

  1. Install python using uv uv python install 3.12
  2. Create project uvx --python 3.12 create-mcp-server
dsp-ant commented

I wonder if you ran into astral-sh/uv#6204 or something similar. It's good to know. We should see if can add this to the troubleshooting section. I'll close this for now since it seems to be a uv + pyvenv interaction, but we keep in mind that there are issues with those.