Runtime Error in C#
===

I have installed Async-CTP-v3 for using new feature of C# 5 but when I tried to run a **console application** using async keyword/await expression this error appeared:

"A Project with an output type of Class Library cannot be started directly.

In order to debug this project, add an executable project to this solution which references the library project.  Set the executable project as the startup project."

Is there anyone can help me?
Thanks.



