When opening the project in Xojo 2014 Release 1 the IDE returns an error at "StatusBarWFS.Constructor, Line 1" of "This item does not exist: ConstructorHelper( owner.Handle, owner.GrowIcon )" when attempting to run on OS X (10.9.2):

I have this same exact error occurring in an old app that has version 2.6.0 (Dec 22, 2010) of the WFS project.