How to solve 404 when connecting Ng2-bootstrap in angular2?

Question

Angular

Good afternoon!
I'm trying to connect the ng2-bootstrap module.
A 404 error appears, the module was not found.
Here is the systemjs.config.js file code

/**
 * 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: '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',
            '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
            '@angular/http/testing': 'npm:@angular/http/bundles/http-testing.umd.js',

            // other libraries
            'rxjs': 'npm:rxjs',
            // 'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
            'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',

            'underscore': '../node_modules/underscore/underscore.js',
            // 'ng2-bootstrap': '../node_modules/ng2-bootstrap/ng2-bootstrap.js',
        },
        // packages tells the System loader how to load when no filename and/or no extension
        packages: {
            app: {
                main: './main.js',
                defaultExtension: 'js',
                'underscore': '../node_modules/underscore/underscore.js',
                // 'ng2-bootstrap': '../node_modules/ng2-bootstrap/ng2-bootstrap.js',
            },
            // 'ng2-bootstrap': { defaultExtension: 'js' },
            rxjs: {
                defaultExtension: 'js',
                main: 'Rx.js'
            },
        }
    });
})(this);

Uncommenting the lines about ng2-bootsrap gives a 404 error with traceur