Cannot find module TypeScript TS2307

Why This Happens

In TypeScript, typescript can't find the module or its type declarations. This is one of the most common TypeScript errors developers encounter. Understanding the root cause helps you fix it quickly and prevent it from recurring.

The Problem

import foo from 'untyped-pkg';

The Fix

// Install types:
npm install @types/untyped-pkg
// Or create declaration:
declare module 'untyped-pkg';

Step-by-Step Fix

1. 1

   Identify the error

   Look at the error message: TS2307: Cannot find module. This tells you exactly what went wrong.

2. 2

   Find the cause

   Check the stack trace to find which line of your TypeScript code triggered this error.

3. 3

   Apply the fix

   Use the corrected code pattern shown above. Test to confirm the error is resolved.