This issue was originally filed by @butlermatt

What steps will reproduce the problem?

1. Install dart editor and SDK as a sub directory of the dart editor.
2. Verify configuration in dart editor detects the SDK (Reports Dark SDK version 3934)
3. Create a new script project.
4. At line 1 enter in: #import("dart:io"); (leave the standard hello world lines if desired)
5. Save.

What is the expected output? What do you see instead?
Expected to load the library properly.
An error appears next to line one indicating: "File not found: dart:io".

What version of the product are you using? On what operating system?
Dart editor: Linux-gtk-64-bit build 3934
Dart SDK: Linux build 3934

Please provide any additional information below.
Also receive editor pane errors when trying to use classes from that library. However in the Libraries Pane (left side by default) the library is loaded and does show the various classes it contains correctly. Running the server script in the VM (both through CLI and through the editor) displays the correct results in the console.