I'm not sure what these are, why they are being called, or why they are missing.
I'm trying to create a modified version of the display switcher in the
flexstore. I had done this before in an earlier version of Flex. Now, when
I try to run it, I get "missing class" error messages for the classes
mx.binding.PropertyWatcher, mx.binding.ArrayElementWatcher, and
mx.binding.FunctionReturnWatcher.
I'm not sure what these are, why they are being called, or why they are missing.
I'm not sure what these are, why they are being called, or why they are missing.

