Moon apns til apple push notifications

Jeg får denne exception

System.TypeInitializationException: The type initializer for 'MoonAPNS.PushNotification' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly '

Lige meget hvad jeg gør og hvor jeg placerer p12 filen. Code:

string p12File = "MK.p12";
string p12FilePassword = "passsssss";
string p12Filename = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, p12File);
var push = new PushNotification(false, p12Filename, p12FilePassword);