title: GET http://localhost:3000/node_modules/rxjs/ 404 (Not Found) in angular4
body: <p>node_modules/rxjs not found, while npm start my app.i have tried may of suggestions. not succeed. i am using quickstart repo form gihub <a href="https://github.com/angular/quickstart" rel="noreferrer">click</a> </p>
  
  <p>My systemjs.config.js file </p>
  
  <pre><code>(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',
  
        // other libraries
        'rxjs':                      'npm:rxjs',
        'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'
      },
      // packages tells the System loader how to load when no filename and/or no extension
      packages: {
        app: {
          defaultExtension: 'js',
          meta: {
            './*.js': {
              loader: 'systemjs-angular-loader.js'
            }
          }
        },
        rxjs: {
          defaultExtension: 'js'
        }
      }
        });
      })(this);
  </code></pre>
  
  <p>my package.json file</p>
  
  <pre><code>"dependencies": {
  "@angular/common": "~4.0.0",
  "@angular/compiler": "~4.0.0",
  "@angular/core": "~4.0.0",
  "@angular/forms": "~4.0.0",
  "@angular/http": "~4.0.0",
  "@angular/platform-browser": "~4.0.0",
  "@angular/platform-browser-dynamic": "~4.0.0",
  "@angular/router": "~4.0.0",
  "angular-in-memory-web-api": "~0.3.0",
  "core-js": "^2.4.1",
  "polyfills": "^2.1.1",
  "rxjs": "5.0.1",
  "zone.js": "^0.8.4"
  </code></pre>
  
  <p>},</p>
  
  <p>Tried many of the solutions from stackoverflow, didn't solved error. </p>