Error when build wp 8?

Unity Engine
1

Error building Player: Exception: Error: method System.Void System.Net.Sockets.Socket::set_ReceiveTimeout(System.Int32) doesn’t exist in target framework. It is referenced from Assembly-CSharp.dll at System.Void NetworkUtil::ProcessConnect(System.Net.Sockets.SocketAsyncEventArgs).
Help me!!!

2

maybe this helps: Socket problem when deploy to windows phone 8 - Unity Engine - Unity Discussions

3

Thank you! but it did not solve my problem.
Do you have any other help?

4

GameObject obj = (GameObject) Instantiate (Resources.Load (“Actions/” + actions, typeof (GameObject)));
no problem with other platforms. But, when build windows phone:
→
Object reference not set to an instance of an object.

Help me!