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

[tech4life87]

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]

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

[tech4life87]

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]

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]

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.