MCP inspector is not starting, stating "npx" not found

[sesiii]

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Question Category

• Protocol Specification
• SDK Usage
• Server Implementation
• General Implementation
• Documentation
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Your Question

I am writing an MCP server that reads a CSV file and works related to it. I am currently testing the server, i tried using mcp inspector, but the inspector doesnt start. I am getting errors related to nodejs and npx

here is the error

tester$ uv run mcp dev main.py
[07/01/25 05:51:42] ERROR npx not found. Please ensure Node.js and npm are properly installed and added to your system PATH. You may need to restart your terminal after installation. cli.py:296

I have nodejs, npm and npx installed correctly, also tried installing using "uv" package

Can someone pls give me a fix for this?
Thanks in advance

[sesiii]

Fixed

[arockiasachin]

Could you tell me how you fixed it