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I keep getting this error Uncaught SyntaxError: Unexpected token < whenever I try to run my angular2 application. This is just a modification based on the routing 'tutorial' of the angular2 website.
Normally these kind of errors speak for themselves where I miswrote a piece of code. But the Chrome console tells me the error occurs inside of an angular2 js file.
Reading and trying the answers from both Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL and warning C4819: How to find the character that has to be saved in unicode? didn't work. Guessing that the error has to be somewhere in my boot.ts or app.component.ts.
boot.ts
import {bootstrap} from 'angular2/platform/browser';
import {ROUTER_PROVIDERS} from 'angular2/router';
import {AppComponent} from './app.component';
import {HallService} from './hall/hall.service';
bootstrap(AppComponent,[
ROUTER_PROVIDERS,
HallService
]);
app.component.ts
import {Component} from 'angular2/core';
import {RouteConfig, ROUTER_DIRECTIVES} from 'angular2/router';
import {HallCenterComponent} from './hall/hall-center.component';
@Component({
selector: 'my-app',
template: `
<h1 class="title">Component Router</h1>
<a [routerLink]="['HallCenter']">Hallen</a>
<a>Heroes</a>
<router-outlet></router-outlet>
`,
directives: [ROUTER_DIRECTIVES]
})
@RouteConfig([
{
path: '/hall/...',
name: 'HallCenter',
component: HallCenterComponent,
useAsDefault: true
}
])
export class AppComponent { }
index.html
<html>
<head>
<base href="/">
<title>Factory project</title>
<link rel="stylesheet" href="styles.css">
<script src="node_modules/angular2/bundles/angular2-polyfills.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="node_modules/rxjs/bundles/Rx.js"></script>
<script src="node_modules/angular2/bundles/angular2.dev.js"></script>
<script src="node_modules/angular2/bundles/router.dev.js"></script>
<script>
System.config({
packages: {
app: {
format: 'register',
defaultExtension: 'js'
}
}
});
System.import('app/boot')
.then(null, console.error.bind(console));
</script>
</head>
<body>
<my-app>loading...</my-app>
</body>
</html>
hall-center.component.ts
import {Component} from 'angular2/core';
import {RouteConfig, RouterOutlet} from 'angular2/router';
import {HallListComponent} from './hall-list.component';
import {HallDetailComponent} from './hall-detail.component';
import {HallService} from './hall.service';
@Component({
template: `
<h2>HALL CENTER</h2>
<router-outlet></router-outlet>
`,
directives: [RouterOutlet],
providers: [HallService]
})
@RouteConfig([
{path:'/', name: 'HallCenter', component: HallListComponent, useAsDefault: true},
{path:'/:id', name: 'HallDetail', component: HallDetailComponent},
{path:'/list/:id', name: 'HallList', component: HallListComponent}
])
export class HallCenterComponent { }
719
So the above answers seem to be correct but here is some information about the error itself (just for others who run into the same problem wondering what they did wrong) because it can appear with literally each single import and is quite difficult to track down.
It appears whenever a file is required and the webserver is configured to just serve / instead of a 404-file-not-found-page.
/ usually then translates to /index.html and there the first character usually is < (mostly the start of <!DOCTYPE html>) and since that is no valid javascript the browser throws an illegal token exception.
142
You have several issues:
you component selector is : 'my-app'
<app>Loading...<app>
should be
<my-app>Loading...</my-app>
Also, you are importing a wrong file:
System.import('app/app');
should be
System.import('app/boot');
Also, unless you are compiling your typescript to java script.. you should change this line and import typescript.js
{defaultExtension: 'js'}}
should be
{defaultExtension: 'ts'}}
<script src="https://code.angularjs.org/tools/typescript.js"></script>
Also, you are missing few imports:
<script src="https://code.angularjs.org/2.0.0-beta.0/angular2-polyfills.js"></script>
<script src="https://code.angularjs.org/tools/system.js"></script>
<script src="https://code.angularjs.org/2.0.0-beta.0/Rx.js"></script>
Here is a plunker of your code working
43
I suppose, you have installed angular 2 beta release. In this case you have to install additional modules:
npm install es6-promise@^3.0.2 es6-shim@^0.33.3 [email protected] rxjs@^5.0.0-beta.0 [email protected] --save
And import these scripts:
<!-- ES6-related imports -->
<script src="../node_modules/angular2/bundles/angular2-polyfills.min.js"></script>
<script src="../node_modules/es6-shim/es6-shim.min.js"></script>
<script src="../node_modules/systemjs/dist/system.js"></script>
<script>
//configure system loader
System.config({defaultJSExtensions: true});
</script>
<script src="../node_modules/rxjs/bundles/Rx.js"></script>
<script src="../node_modules/angular2/bundles/angular2.min.js"></script>
<script src="../node_modules/angular2/bundles/http.min.js"></script>
<script src="../node_modules/angular2/bundles/router.min.js"></script>
<script>
//bootstrap the Angular2 application
System.import('app/app').catch(console.log.bind(console));
</script>
EDIT:
In fact, these changes where introduced in alpha 49
20
In my case the error came from forgetting to include
<script src="node_modules/angular2/bundles/router.min.js"></script>in index.html
41
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