title: Angular Karma WARN [web-server]: 404 while running test
body: <p>I've been breaking my head trying to setup a base project for angular2, sass and ng2-bootstrap, this project is based on the angular2-seed project and you can find the entire code base here: <a href="https://github.com/omargon/angular-seed-sass-ng2-bootstrap" rel="nofollow">https://github.com/omargon/angular-seed-sass-ng2-bootstrap</a> Everything gets build as expected both for dev and prod distribution. But I keep getting the following error whenever I try to run my uni and e2e tests:</p>
  
  <pre>
  START:
  18 05 2016 12:49:29.095:INFO [karma]: Karma v0.13.22 server started at http://localhost:9876/
  18 05 2016 12:49:29.100:INFO [launcher]: Starting browser PhantomJS
  18 05 2016 12:49:29.112:INFO [launcher]: Starting browser Chrome
  18 05 2016 12:49:29.756:INFO [PhantomJS 2.1.1 (Mac OS X 0.0.0)]: Connected on socket /#87aZKElcLH5MAZgxAAAA with id 21686761
  18 05 2016 12:49:29.910:INFO [Chrome 50.0.2661 (Mac OS X 10.11.5)]: Connected on socket /#tFoYBsOvsGJ0dDEGAAAB with id 7030871
  18 05 2016 12:49:31.062:WARN [web-server]: 404: /app/app.component.html
    NameList Service
      ✔ should return the list of names
  18 05 2016 12:49:31.160:WARN [web-server]: 404: /app/app.component.html
    App component
      ✖ should build without a problem
  
  Finished in 0.158 secs / 0.136 secs
  
  SUMMARY:
  ✔ 2 tests completed
  ✖ 2 tests failed
  
  FAILED TESTS:
    App component
      ✖ should build without a problem
        PhantomJS 2.1.1 (Mac OS X 0.0.0)
        Chrome 50.0.2661 (Mac OS X 10.11.5)
      Failed: Uncaught (in promise): Failed to load app/app.component.html
          at ZoneDelegate.invoke (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/zone.js/dist/zone.js:323:29)
          at Zone.run (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/zone.js/dist/zone.js:216:44)
          at /Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/zone.js/dist/zone.js:571:58
          at ZoneDelegate.invokeTask (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/zone.js/dist/zone.js:356:38)
          at Zone.runTask (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/zone.js/dist/zone.js:256:48)
          at drainMicroTaskQueue (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/zone.js/dist/zone.js:474:36)
          at F (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:7484)
          at H (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:7116)
          at q.when (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:10790)
          at T.run (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:11899)
          at t._drain (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:1744)
          at drain (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:1398)
          at MutationObserver.e (/Users/omar/Development/public/angular-seed-sass-ng2-bootstrap/node_modules/systemjs/dist/system-polyfills.js:4:3319)</pre>
  
  <p>Any help is welcome.</p>