iOS Question XUI Views and compile error

The problem seems to be the following line:

:250:1: error: duplicate interface definition for class '_clvitem'

This means there must be two B4i Libs/Classes that define the same ObjC Class.

My guess: You have added CustomListView as a class and its already included in a library you use. To solve it you just need to remove one of them.

xCustomListView may be included inside XUIViews. Might want to take a look. However I dont see another instance of CustomListView selected in your libraries. So thats odd. Only thing I can think of is maybe iSideView

Do you have a module named CustomListView? If so then remove it.