Ubiquitous Developers Ubiquitous Developers - 3 years ago 87
TypeScript Question

Angular2 Custom Service not found

I am trying to use custom service for populating people list in my HTML. I've created custom service as per below:

app.peopleListService.ts

import { Injectable } from '@angular/core';
import { Person } from "../model/peopleModel";


@Injectable()
export class PeopleService {
constructor() { }

getAll() : Person[] {
return [
{name: 'Luke Skywalker', height: 177, weight: 70},
{name: 'Darth Vader', height: 200, weight: 100},
{name: 'Han Solo', height: 185, weight: 85},
];
}
}


I've register this provider in my module.ts

import {NgModule} from '@angular/core';
import {BrowserModule} from '@angular/platform-browser';
import {AppComponent} from './app.component';
import { PeopleService } from "../services/app.peopleListService";
@NgModule({
imports: [BrowserModule],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ PeopleService]
})
export class AppModule { }


Package.json

{
"name": "angular-demo",
"version": "1.0.0",
"scripts": {
"start": "tsc -w"
},
"dependencies": {
"@angular/common": "~2.3.0",
"@angular/compiler": "~2.3.0",
"@angular/core": "~2.3.0",
"@angular/forms": "~2.3.0",
"@angular/http": "~2.3.0",
"@angular/platform-browser": "~2.3.0",
"@angular/platform-browser-dynamic": "~2.3.0",
"@angular/router": "~3.3.0",
"angular-in-memory-web-api": "~0.2.1",
"systemjs": "0.19.40",
"core-js": "^2.4.1",
"reflect-metadata": "^0.1.8",
"rxjs": "5.0.0-rc.4",
"zone.js": "^0.7.2"
},
"devDependencies": {
"lite-server": "^2.3.0",
"typescript": "~2.0.10"
}
}


Systemjs.config.js

(function (global) {
System.config({
paths: {
'npm:': 'node_modules/'
},
map: {
myApp: 'app',
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'rxjs': 'npm:rxjs',
'angular-in-memory-web-api': 'npm:angular-in-memory-web-api',
},
packages: {
myApp: {
main: './main.js',
defaultExtension: 'js'
},
rxjs: {
defaultExtension: 'js'
},
'angular-in-memory-web-api': {
main: './index.js',
defaultExtension: 'js'
}
}
});
})(this);


But I am getting error in console like this:
enter image description here

Here is my project Structure in VS Code:

enter image description here

Answer Source

You should either move your services folder into your app folder, which makes a lot more sense to do so, and change the import to

import { PeopleService } from "./services/app.peopleListService";

Or add a new package to your systemjs.config.js:

packages: {
  services: {
    defaultExtension: 'js'
  },
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