// // Copyright (c) 2010, Brian Frank and Andy Frank // Licensed under the Academic Free License version 3.0 // // History: // 23 Mar 10 Brian Frank Creation // ** ** FieldNotSetErr indicates a non-nullable field was not ** set by the constructor it-block. ** const class FieldNotSetErr : Err { ** ** Construct with specified error message and optional root cause. ** new make(Str msg := "", Err? cause := null) }