Error in deploying

[karanvir]

I am developing windows phone 8 app. But facing an error which is not understood by me. Please suggest me any solution. The error is as below:

Error building Player: Exception: Error: type System.Runtime.Serialization.SerializationInfo doesn’t exist in target framework.
Error: type System.Runtime.Serialization.SerializationInfo doesn’t exist in target framework.
Error: type System.Runtime.Serialization.SerializationInfo doesn’t exist in target framework.
Error: type System.Runtime.Serialization.SerializationInfo doesn’t exist in target framework.
Error: type System.Runtime.Serialization.SerializationInfo doesn’t exist in target framework.
Error: type System.Runtime.Serialization.SerializationInfo doesn’t exist in target framework.
Error: type System.ComponentModel.TypeDescriptor doesn’t exist in target framework.
Error: type System.ComponentModel.TypeDescriptor doesn’t exist in target framework.

[Muadib]

FAQ

Why am I getting errors like “type Foo.Bar doesn’t exist in target framework”?

It’s because Windows Phone 8 uses a different flavor of .NET called .NET for Windows Phone which is missing some of the types available on other platforms. You’ll have to either replace these types with different ones or implement them yourself.

[karanvir]

Thanks for your response sir but I actually not getting what do you want to say?
Please make it clear by giving some more explanation in detail as it is very urgent.

From where and which file should I replace so that the project will work properly?