Question: I'm using Flash Builder 4.7. When starting a new Actionscript Project, the first popup box where you define the project name etc doesn't show any SDK's. So under "This project will use" there is just an empty area...

And in the created project I also can't link to a Flex SDK in the Actionscript Build Path.

When starting a new Flex Project, everything is OK and I can choose between the different SDK's installed.

Any idea what could be wrong?

Thanks in advance for any help!

Frank

Answer: 
Problem found and solved thanks to this blog post:
<http://www.badu.ro/?p=238>

Apparantly when moving from Flex Builder 4.6 to 4.7 you have to use new workspaces. If you reuse the existing ones from version 4.6 you run into problems like I was having...

Thanks for all your help,

Frank
I suspect you are seeing errors because your class has no package definition.

```
package com.something.something
{
// imports
import flash.display.Sprite
// class definition

    public class Something extends Sprite{

    }
}

```

But, you didn't show us the actual errors in your screenshot. IF that is not the error, please provide the text of your compiler errors / warnings. In Flash Builder, from the WIndow Menu select Show View and Problems.