Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
339 views
in Technique[技术] by (71.8m points)

javascript - Angular 2 Quickstart: unexpected token <

I am trying to set up angular 2 according the quickstart found at http://angular.io. I have copied every file exactly as described in the guide, but when I run npm start and a browser tab opens, I get the "Loading..." with the following error in the console:

Uncaught SyntaxError: Unexpected token <                        (program):1
     __exec @ system.src.js:1374
Uncaught SyntaxError: Unexpected token <          angular2-polyfills.js:138
    Evaluating http://localhost:3000/app/boot
    Error loading http://localhost:3000/app/boot

This is my app.component.ts:

import {Component} from 'angular2/core';

@Component({
    selector: 'my-app',
    template: `<h1>My First Angular 2 App</h1>`
})
export class AppComponent {

}

My boot.ts:

import {bootstrap} from 'angular2/platform/browser';
import {AppComponent} from './app.component';

bootstrap(AppComponent);

My index.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Angular 2 Quick Start</title>

    <script src="node_modules/es6-shim/es6-shim.js"></script>
    <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>
    System.config({
        packages: {
            format: 'register',
            defaultExtension: 'js'
        }
    });

    System.import('app/boot')
        .then(null, console.error.bind(console));
    </script>
</head>
<body>
    <my-app>Loading...</my-app>
</body>
</html>

My package.json:

{
    "name": "angular2-quickstart",
    "version": "0.1.0",
    "scripts": {
        "tsc": "tsc",
        "tsc:w": "tsc -w",
        "lite": "lite-server",
        "start": "concurrent "npm run tsc:w" "npm run lite" "
    },
    "license": "MIT",
    "dependencies": {
        "angular2": "2.0.0-beta.0",
        "systemjs": "0.19.6",
        "es6-promise": "^3.0.2",
        "es6-shim": "^0.33.3",
        "reflect-metadata": "0.1.2",
        "rxjs": "5.0.0-beta.0",
        "zone.js": "0.5.10"
    },
    "devDependencies": {
        "concurrently": "^1.0.0",
        "lite-server": "^1.3.1",
        "typescript": "^1.7.3"
    }
}

And finally my tsconfig.json:

{
    "compilerOptions": {
        "target": "ES5",
        "module": "system",
        "moduleResolution": "node",
        "sourceMap": true,
        "emitDecoratorMetadata": true,
        "experimentalDecorators": true,
        "removeComments": false,
        "noImplicitAny": false
    },
    "exclude": [
        "node_modules"
    ]
}

Thanks in advance for any help.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Try replacing this

System.config({
        packages: {
            format: 'register',
            defaultExtension: 'js'
        }
    });

with this

System.config({
        packages: {
            app: { // must match your folder name
                format: 'register',
                defaultExtension: 'js'
            }
        }
    });

I was trying to apply a slightly different folder structure to their quickstart and ran into the same issue. I found that the name of the property on the "packages" object had to match the parent folder.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...