c# client-server class cast error.

[alexx12]

I am developing a client server application in C#.

I am sending from my server to client an object of `Student` type which I serialize on the server side and deserialize on client side. The serialization and deserialization are as follows :

// server side serialization.
    Student s1 = new Student("Chuck","Noris");
    BinaryFormatter binaryFormatter = new BinaryFormatter();
    binaryFormatter.Serialize(writer.BaseStream, s1);

    // client side deserialization.
    1.BinaryFormatter bin = new BinaryFormatter();
    2.Student s1 = (Student)bin.Deserialize(receive.BaseStream);
    3.Console.WriteLine(s1.ToString());

and i get this error at runtime:
>[A]ServerClient.St udent cannot be cast to [B]ServerClient.St udent.
>Type A originates from 'Server, Version=0.0.0.0 , Culture=neutral , PublicKeyToken= null' in >the context 'Default' at location >D:\Faculty\Wor kspace\C#\Serve rClient\ServerC lient\Server.ex e'. Type B originates from >Client, Version=0.0.0.0 , Culture=neutral , PublicKeyToken= null' in the context 'Default' at >location 'D:\Faculty\Wor kspace\C#\Serve rClient\ServerC lient\Client.ex e'.

Also, if on the client side on line 2 I replace:

`Student s1 = (Student)bin.Deserialize(receive.BaseStream);`

with

    Object s1 = bin.Deserialize(receive.BaseStream);
    Console.WriteLine(s1.ToString());

everything works just fine, and the WriteLine method is printing toString represetation of object send it from server.

To create the Server.exe and Client.exe I used the following commands:

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe Server.cs Repository.cs Student.cs
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe Client.cs Student.cs

and I get no errors or warning.
Also my `Student` class have the `[Serialization]` attribute.
I did searched the web for this kind of errors but i couldn't find anything usefull.