Angular 2 - 404 traceur not found

Question

I\'ve followed the starting guide and expanded a little upon for a previous angular 2 version. I\'ve updated my revision and changed everything accordingly. When I am runnin

Answer 1

There are multiple reason behind this error,

1)Sometimes comments mentioned on top of app.component.ts file
2)pointing to incorrect umd file
3)If you are using ts(Typescript) version, please mention the transpiler options in config.js file as below or compile your all .ts file to .js file using transpiler and then reference .js file in code:

(function (global) {
    System.config({
        transpiler: 'ts',
        typescriptOptions: {
          tsconfig: true
        },
        paths: {
            // paths serve as alias
            'npm:': 'node_modules/'
        },
        // map tells the System loader where to look for things
        map: {
            // our app is within the app folder
            app: 'app',
            // angular bundles
            '@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',
            // other libraries
            'rxjs': 'npm:rxjs',
            'angular-in-memory-web-api': 'npm:angular-in-memory-web-api',
            'angular2' : ''
        },
        // packages tells the System loader how to load when no filename and/or no extension
        packages: {
            app: {
                main: './main',
                defaultExtension: 'ts'
            },
            rxjs: {
                defaultExtension: 'js'
            },
            'angular-in-memory-web-api': {
                main: './index.js',
                defaultExtension: 'js'
            }
        }
    });
})(this);