Angular 2.1.1 SystemJs.Config.js

systemjs.config.js

/**
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
    System.config({
        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 : 'ScriptsApp', // 'dist',
            // 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',
        },
        // packages tells the System loader how to load when no filename and/or no extension
        packages: {
            app: { main: './boot.js', defaultExtension: 'js' },
            rxjs: { defaultExtension: 'js' }
        }
    });
})(this);

C:\Coursera\Bootstrap4\conFusion>npm install font-awesome --save-dev
npm ERR! Unexpected token < in JSON at position 3

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Bhagyashree K\AppData\Roaming\npm-cache_logs\2018-05-19T06_20_31_807Z-debug.log

How do i correct this error?