PARSE ERROR: Argument: -n (--name)
             Value 'mike' does not meet constraint: homer|marge|bart|lisa|maggie

Brief USAGE: 
   ../examples/test6  -n <homer|marge|bart|lisa|maggie> [--] [--version]
                      [-h] <1|2|3>

For complete USAGE and HELP type: 
   ../examples/test6 --help