I hope this helps but this issue began after I received a "Source not
found" message during debugging. I was acutally debugging a program that
I had debugged many times before when I received this message. I found
that when I browsed and selected the workspace that I am working with that
I was able to debug but it was at this point that I couldn't make changes
to the code or add break points because the debugging was in a copy of my
acutally code. Also, when I selected the browse to find my workspace, it
initially listed a different workspace the my current workspace I was
using. As I said, I switched to my current workspace and could debug (or
see the code) I just couldn't make changes, or add break points and it
created a second copy of my code.