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Node.js2 solutions

Node.js Errors and Solutions

Runtime errors, npm issues, and performance problems

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Node.js EADDRINUSE: Address Already in Use

Node.js server cannot start because the specified port is already in use by another process.

Error: listen EADDRINUSE: address already in use :::PORT

Updated 9/14/2026

Node.js Module Not Found: Causes and Fixes

Node.js cannot locate a required module in the application.

Error: Cannot find module 'module-name' or MODULE_NOT_FOUND

Updated 9/14/2026

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