RaiseMan gives error when printing

Cocoa Programming for OS X (5th Edition) 27. Printing
1

RaiseMan gives fatal error: NSArray element failed to match the Swift Array Element type

Error occurs for line:
let employee = employees[indexInEmployees]
in file:
EmployeesPrintingView.swift

Error by instruction is:
Thread 1: EXC_BAD_INSTRUCTION(code=EXC_1386_INVOP,subcode=0x0)

2

I now have printing working. The main change was to select the ArrayController and Attributes.
For Object Controller I specified Mode:Class and Class Name:RaiseMan.Employee.