04-08-2012 01:14 AM
Solved! Go to Solution.
04-09-2012 09:21 AM
Usually you get the "black box" warning because the underlying code for the instantiated
entity is not included in your project, or for some reason has not been compiled. I have found
that if you try to build the project and get the black box error, then add the module you were missing,
sometimes ISE will not compile the newly added module unless you first "cleanup project files."