title: angular 5 material MatTableDataSource
body: <p>I updated from angular 4.4.6 and material beta 19 to angular 5 and material 5.0.0-rc0</p>
  
  <p>The application compiles correctly, but executing on Chrome I get</p>
  
  <blockquote>
    <p>"Uncaught Error: Unexpected value 'MatTable DataSource' imported by the module 'Material Modules'. Please add a @NgModule annotation."</p>
  </blockquote>
  
  <p>Other material components work correctly, mat-icon, mat-card-content, mat-tab-group, mat-dialog-xxx ...</p>
  
  <p>Could you help me?</p>