TS2584

error TS2584: Cannot find name ‘console’. Do you need to change your target library? Try changing the ‘lib’ compiler option to include ‘dom’.

Broken Code ❌

TypeScript code:

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console.log('Hello, World!');

TypeScript compiler configuration (tsconfig.json):

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{
  "compilerOptions": {
    "lib": ["es2017"]
  }
}

Fixed Code ✔️

You have to add the following to your “tsconfig.json” file:

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{
  "compilerOptions": {
    "lib": ["es2017", "dom"]
  }
}

When you are working on an application which never runs in a browser but only in Node.js environments, then you could add @types/node to your devDependencies instead of adding "dom" to your "lib" section.