invalid redeclaration in auto code generate NSManagedObject Subclass Swift 3

Question

Using Version 8.1 of Xcode.

Create an entity named \"MapRegionObject\" in .xcdatamodeld file.

Using auto code generator, click Editor on the navigation bar -

Answer 1

In Xcode 8.2.1 , Menu-Product-Clean，And every is ok, it's so verid.