TypeScript error in Angular2 code: Cannot find name 'module'

Question

I have defined the following Angular2 component:

import {Component} from \'angular2/core\';

@Component({
  selector: \'my-app\',
  moduleId: module.id,
  te         


        

Answer 1

This is what I did that worked for me on Eclipse(Webclipse)/Windows.

Step 1:

Terminal

$ npm install @types/node --global --save

Step 2:

tsconfig.json

{
  "compilerOptions": {
    ...,
    "types": ["node"]
  }
}

In addition, I had the following dependencies in my package.json, so I was using typescript 2.

  "devDependencies": {
    ...
    "typescript": "~2.0.10",
    "@types/node": "^6.0.46",
    ...
  },

Answer 2

It still did not work until i pasted this where i had module.id, on top of component. like this

declare var module: NodeModule;
interface NodeModule
{
id: string;
}

@Component({module.id})

Answer 3

For those looking to do this with Typescript 2.x and @types, here's what you need to do:

1. npm install -D @types/node
2. Include types: ["node"] under compilerOptions in your tsconfig.json file.

I had a tough time finding the instructions for step 2.

Reference: Typescript issue 9184

Edit:

You could also do:

2. Include "typeRoots": [ "node_modules/@types" ] under compilerOptions in your tsconfig.json file. This is instead of the types property and has the benefit of automatically including any @types you install with npm.

For example:

{
  "compilerOptions": {
    "typeRoots": [
      "node_modules/@types"
    ]
  }
}

[Second edit] Apparently, with the latest typescript, you only need typeRoots or types if tsconfig.json is not in the root of your project or your types are not stored in node_modules/@types.

Answer 4

I hit this error when porting my @angular/angular2 Quickstart project into a new angular cli auto-generated project.

It seems that moduleId: module.id isn't needed anymore.

This is the latest auto-generated component:

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'app works!';
}

Removing all occurances resolved my errors.

Answer 5

module.id

cannot find the name module.

Follow following steps to resolves this issue,

step 1: Install node module by using the below command

npm i @types/node --save

Step 2: modify the file tsconfig.app.json under src/app

"types": [
    "node"
]

Answer 6

For me, I had a tsconfig.app.json that extended tsconfig.json. So when I added "types": ["node"] in tsconfig.json, it was being overridden by the "types" property in tsconfig.app.json. Adding "node" to the existing "types" property in tsconfig.app.config fixed it.