Transition Problems
 

I am having problems linking my files: GUI Title & GUI_Tutirial.

Here are some of the errors I recieve when I compile and run GUI Title:
Here are some of the errors I recieve when I compile and run GUI_Tutirial:

When I click on the "MainBtn" the words from GUI Title dont show up and the MainBtn is not removed without causing the program to shutdown.

Any Suggestions?

I think a better way of doing this is to hide one menu and make the other visible when you need to go back and forth