TextView autolink error

Question

I am using Xamarin and am trying to get the autolink working for a TextView.

Here is my code:

using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

namespace TestTextViewAutoLink
{
    [Activity (Label = "TestTextViewAutoLink", MainLauncher = true)]
    public class MainActivity : Activity
    {
        protected override void OnCreate (Bundle bundle)
        {
            base.OnCreate (bundle);

            TextView textView = new TextView (this.ApplicationContext);
            textView.AutoLinkMask = Android.Text.Util.MatchOptions.PhoneNumbers; 
            textView.Text = "This is a phone number 0800 32 32 32";

            SetContentView(textView);
        }
    }
}

The text is being displayed, however the following error occurs when I click on the text:

Unfortunately, TestTextViewAutoLink has stopped

May I please have some help to get this working?

Thanks in advance.

EDIT

I have also tried this code, however the same error occurs:

    protected override void OnCreate (Bundle bundle)
{
    base.OnCreate (bundle);

    TextView textView = new TextView (this.ApplicationContext);
    //textView.AutoLinkMask = Android.Text.Util.MatchOptions.PhoneNumbers; 
    textView.Text = "This is a phone number 0800 32 32 32";

    Linkify.AddLinks(textView, MatchOptions.PhoneNumbers);

    SetContentView(textView);
}