Resolve Node ERR_MODULE_NOT_FOUND Error

Diagnosis

The 'ERR_MODULE_NOT_FOUND' error in Node.js occurs when the runtime cannot locate a module specified in your code. This is often due to incorrect file paths or missing dependencies.

Solution

1. Check File Paths: Ensure the path to the module is correct and relative paths are used appropriately.
2. Install Missing Modules: Run npm install to ensure all dependencies are installed.
3. Check Module Exports: Verify that the module you're trying to import is correctly exported.
4. Verify Package.json: Ensure that the main field in your package.json points to the correct entry file.

Verification

After applying the solutions, run your Node.js application again. If the error persists, double-check the paths and ensure all modules are correctly installed.