swf is unable to connect ot the server

I'm new so my apologize.

Probably a stupid question, but for some reason I can not run any swf file. each time I get an error. i.e. "Unable to connect to the server local host at port 8184 due to security error."

You need to compile the test server in Serverside.sln first. Open the solution and hit F5

thanks,
I tried that, but I get an Error msg when I press F5 that say :"a project with an Output Type of Class Library cannot be started automatically. In order to debug this project, add the executable project to this solution which reference the library project. Set the executable project as a startup project"

I was able to Build the solution and to create the DLL and SWF in the output directory.
I'm new to visual studio and I'm lost here...

Did you add any code to the solution, or compile it without any changes? If you changed the properties, you may have entered something in wrong.

There is two projects in the project. One called Serverside Code and one called Test Server. Right click Test Server and choose Set as StartUp Project then hit F5 again.

thanks guys
It's working!!!