register a user to an application

[smilad]

when i want to register user to and application I have a error and give me that user exist:
package main

import (
"github.com/FusionAuth/go-client/pkg/fusionauth"
"log"
"net/http"
"net/url"
)

func main() {
var HttpClient = &http.Client{}

u, _ := url.Parse("http://192.168.13.32:9011")
f := fusionauth.NewClient(HttpClient, u, "hBUKq3x_hUFXqA6GSXhdWWTRknTq7uzTNc_SzCmhpgDgm0UpNI-Wm56C")

r, e1, e2 := f.Register("e2337690-4c91-4573-bbed-88695701612f", fusionauth.RegistrationRequest{
	Registration: fusionauth.UserRegistration{
		ApplicationId: "dee6cf94-0bdc-4050-bca8-04ac1920ee9b",
		Username:      "dtd",
		Roles:         []string{"10"},
	},
})

log.Println("response", r)
log.Println("des err : ", e1)
log.Println("err", e2)

}

and my error is:

user.email: You must specify either the [user.email] or [user.username] property. If you are emailing the user you must specify the [user.email]. user.password: You must specify the [user.password] property. user.username: You must specify either the [user.email] or [user.username] property. If you are emailing the user you must specify the [user.email]. userId: A User with Id [e2337690-4c91-4573-bbed-88695701612f] already exists.