type `System.Security.Cryptography.MD5` doesn't exist in target framework. It is referenced from Assembly-CSharp.dll at CryptographHelper.

Error building Player: Exception: Error: type System.Security.Cryptography.MD5 doesn’t exist in target framework. It is referenced from Assembly-CSharp.dll at CryptographHelper.

Error building Player: Exception: Error: method System.String System.Text.Encoding::GetString(System.Byte[]) doesn’t exist in target framework. It is referenced from Assembly-CSharp.dll at System.String LMsg::ReadUTF(System.Int32).

anyone can help me?

contain have System.Text.Encoding namesapce

There is no MD5 on WindowsPhone, see:

Microsoft document GetString() as a virtual function. Perhaps nothing is overriding it.