C# - StreamReader.ReadLine does not work properly!

Question

Simply I have been trying to implement what BufferedStreamReader does in Java. I have a socket stream open and just want to read it in a line-oriented fashion -

Answer 1

Tried this and got

The type or namespace name 'Stream' could not be found (are you missing a using directive or an assembly reference?) The type or namespace name 'StreamReader' could not be found (are you missing a using directive or an assembly reference?) The type or namespace name 'StreamReader' could not be found (are you missing a using directive or an assembly reference?) 'System.Net.Sockets.Socket' does not contain a definition for 'GetStream'