TypeScript error in Angular2 code: Cannot find name ‘module’

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Update

If you use Typescript 2^ just use the following command:

npm i @types/node --save-dev

(instead of --save-dev you can just use shortcut -D)

or install it globally:

npm i @types/node --global

You can also specify typeRoots or types in your tsconfig.json if you want but by default all visible “@types” packages are included in your compilation.

Old version

You need to install node ambientDependencies. Typings.json

"ambientDependencies": {
    "node": "github:DefinitelyTyped/DefinitelyTyped/node/node.d.ts#138ad74b9e8e6c08af7633964962835add4c91e2",

Another way can use typings manager to install node definition file globally:

typings install dt~node --global --save-dev

Then your typings.json file will look like this:

"globalDependencies": {
  "node": "registry:dt/node#6.0.0+20160608110640"
}

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