generate go file error

Created by: cs2mw

wsdl2go -i http://139.219.103.89:8206/p6ws/services/AuthenticationService?wsdl -o authentication_service.go -p p6ws

report error: .\authentication_service.go:24:17: undefined: Logout .\authentication_service.go:27:32: undefined: ReadDatabaseInstances .\authentication_service.go:30:32: undefined: ReadSessionProperties .\authentication_service.go:139:10: undefined: Logout