canRemove for CDBookshelf w/ CoreData

Hi

I tried adding ‘canRemove’ value to [-] button (not using CoreData widget) and when launching an app, i get this exception:

2009-08-14 14:19:26.453 CDBookshelf[807:10b] * Terminating app due to uncaught exception ‘NSInternalInconsistencyException’, reason: ‘Cannot create BOOL from object (
) of class _NSControllerArrayProxy’

All other bindings are identical to the ones in previous chapter. What am i doing wrong here?

nvmind, false alarm! Bindings weren’t identical after all. I bound “Enabled” value of table view to NSArrayController’s canRemove key.