AnsweredAssumed Answered

Why doesn't this solid give me a section view

Question asked by Mike Mason on May 23, 2014
Latest reply on May 29, 2014 by Jody Stiles

Everytime I try to view this model sectioned with the top plane I get an error.  I can't figure out what is wrong.  I've attached the file and screen shots.  Thanks for any help.