Blind Fish Blind Fish - 1 year ago 1108
Node.js Question

No Exported Member / Node Modules

I am just starting Angular 2 / Typescript using the 5 Minute Quickstart found here. I've run into what looks to be a common problem, but maybe a bit different. I am encountering all sorts of "No Exported Member" problems. Examples:

From app.module.ts:

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';


...node_modules/@angular2/core/index" has no exported member 'NgModule'.


...@angular/platform-browser/index" has no exported member 'BrowserModule'.

And from main.ts:

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';


...@angular/platform-browser-dynamic/index" has no exported member 'platformBrowserDynamic'.

I am running node version 4.4.7 and npm version 3.10.5.

I understand that these are probably resolvable in the context of the tutorial by rolling back node or npm to version relevant to the tutorial. I guess what I would prefer to have is an explanation of how to make the code from the tutorial relevant to the current versions of node.

ETA: These errors occur at compilation, not execution.

Answer Source

The NgModule class is exported from the node_modules/@angular/core/src/metadata.d.ts file through the node_modules/@angular/core/index.d.ts one.

I wonder if you specify correctly the moduleResolution property in your tsconfig.json file:

  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node", // <-----
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false