Client
iGame Channel = new ChannelFactory ( new BasicHttpBinding ( BasicHttpSecurityMode . None ) , new EndpointAddress ( new Uri ( \"http://loc
The Problem Occur Because the application I was using and the dll i added to my application both have different Versions.
Add this Package- Install-Package Microsoft.Bcl.Async -Version 1.0.168
ADDING THIS PACKAGE async Code becomes Compatible in version 4.0 as well, because Async only work on applications whose Versions are more than or equal to 4.5