dart:uri in generated Dart html pages does not run -

With the latest version of Dart (Editor 24275) I'm getting an error: dart: uri

It has been placed in my built-in HTML:

import "dart: different" as FB; Import "Dart: Yuri" as MH; Import "Dart: Jason" ...... ......

Dart VM Version: 0.5.20.4_R 24275 (Fri Jun 21 05:02:35 2013) "macos_ia32" Dart: Yuri is in Dart now: Core I remember .. But my HTML is being built in this with it and it does not run with DART VM in Chromium.

I have removed the out folder and rebuilt it does not solve it.

Are you sure that import "dart: uri" / code> Whether they stand alone, embedded script in dart scripts or HTML templates / components etc?

This is also good to run "Ranalaz Source".