Failure to deploy an application to iOS simulator

Hello,

I am working with Visual Studio and Xamarin plugin installed on a MacBook Pro with Parallels. VS is connected to the host, however I can't run the app in iOS simulator. Here is the output:

Mono.Android.VisualStudio.MonoAndroidPackage Warning: 0 : Initializing Mono.Android.VisualStudio.MonoAndroidPackage
Mono.IOS.VisualStudio.MonoTouchPackage Warning: 0 : Initializing Mono.IOS.VisualStudio.MonoTouchPackage
Mono.Android.VisualStudio.MonoAndroidPackage Warning: 0 : Build server returned an Warning.
Mono.IOS.VisualStudio.MonoTouchPackage Warning: 0 : Build server returned an Warning.
Mono.Android.VisualStudio.MonoAndroidPackage Warning: 0 : Negotiating server information for pairing process.
Mono.IOS.VisualStudio.MonoTouchPackage Warning: 0 : Negotiating server information for pairing process.
Getting device...
Starting debug on:iPhone (Retina) 7.0
Running ConwayGameTouchTestsMono.IOS.VisualStudio.MonoTouchPackage Error: 0 : Exception caught.
System.Net.WebException: The remote server returned an error: (500) Internal Server Error.
   at System.Net.HttpWebRequest.GetResponse()
   at MonoTouch.Tools.Utilities.BuildServerClient.ServerIO.Server_GetResult[T](String command, IDictionary`2 queryVariables)
Mono.IOS.VisualStudio.MonoTouchPackage Error: 0 : Xamarin.iOS encountered the following error(s):
System.Exception: Failed to run application (Generic)
Server command 'DebugApplication': failed to start application debugging session

Command execution task ended with exception

Exception System.Net.WebException: The remote server returned an error: (500) Internal Server Error.

Exception details can be found in the log file

Any idea of what might cause this?

Thanks in advance

Vagif