How to pass errors with user registration to the user using Parse with Unity3D

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I'm trying to create a simple registration interface for a mobile game I'm developing in Unity3D and I am using Parse to do so. It has been incredibly helpful but I am having a very hard time letting the user know where problems arise when they are registering. The documentation on this from Parse seems to have what I need but I can't get it to work without an error. Specifically my question is as follows:

1) How might I fix the following error?

error CS0308: The non-generic type 'Systems.Collections.IEnumerator' cannot be used with the type arguments.

From this line:

using (IEnumerator<System.Exception> enumerator = t.Exception.InnerExceptions.GetEnumerator()) {

Here is the code:

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using Parse;
using System;
using System.IO;
using System.Threading.Tasks;

public class RegistrationButtonManager : MonoBehaviour {

    Text displayError;
    private string errorText = string.Empty;
    private string username = string.Empty;
    private string password = string.Empty;
    private string email = string.Empty;

    // Use this for initialization
    void Start () {
       displayError = GameObject.Find("txtLoginMessage").GetComponent<Text>();
    }

    // Update is called once per frame
    void Update () {
       displayError.text = errorText;
    }

    public void SendRegistration()
    {

        InputField[] registrationData = GameObject.Find("RegistrationPanel").GetComponentsInChildren<InputField>();
        errorText = "Registering...";

        username = registrationData[0].text;
        password = registrationData[1].text;
        email = registrationData[2].text;

        var user = new ParseUser()
        {
            Username = username,
            Password = password,
            Email = email
        };

        try
        {
            user.SignUpAsync().ContinueWith(t => {
                if (t.IsFaulted) {
                    // Errors from Parse Cloud and network interactions
                    using (IEnumerator<System.Exception> enumerator = t.Exception.InnerExceptions.GetEnumerator()) {
                        if (enumerator.MoveNext()) {
                            ParseException error = (ParseException) enumerator.Current;
                            // error.Message will contain an error message
                            // error.Code will return "OtherCause"
                        }
                    }
                }
            });
        }
        catch (InvalidOperationException e)
        {
            // Error from the SDK logic checks
            // e.Message will contain the specific error
            // ex: "Cannot sign up user with an empty name."
        }
    }
}

Any suggestions? Thanks!

asked 4 mins ago

user3034715

3

How to pass errors with user registration to the user using Parse with Unity3D