mySocket cannot be resolved

The error message "mySocket cannot be resolved" usually means that the variable "mySocket" has not been declared or initialized in the current scope.

To fix this error, make sure that you have declared and initialized the "mySocket" variable before using it. For example, you can declare and initialize a socket object like this:

Socket mySocket = new Socket("localhost", 8080);

Make sure that the variable name and data type match your code. Also, check that you have imported the necessary classes for working with sockets.