[RESOLVED] dll error

Hi,
I am running visual studio 2010 premium with silverlight toolkit 4.
The project does not build and in references, the following dlls have yellow exclamation next to them:
1- Microsoft.Expression.Interactions
2- System.Windows.Interactivity

How can I solve these please?
Thanks

Did you copy/paste the code in from some example or web post?
Sounds like you are missing a reference or two.

yes. corrected the path to the dlls.
Solved.
Thanks