title: Location and HashLocationStrategy stopped working in beta.16
body: <p>Error message </p>
  
  <blockquote>
    <p>VM556 angular2-polyfills.js:349Error: Token must be defined!(…)</p>
  </blockquote>
  
  <p>or</p>
  
  <blockquote>
    <p>error TS2305: Module '"/node_modules/angular2/router"' has no exported member 'LocationStrategy'.<br>
    error TS2305: Module '"/node_modules/angular2/router"' has no exported member 'HashLocationStrategy'.<br>
    error TS2305: Module '"/node_modules/angular2/router"' has no exported member 'Location'.</p>
  </blockquote>
  
  <p>How to fix</p>