I'm trying to use a GridLayout in my AXML file. In the Visual Studio 2015 designer it shows up perfectly. When I run the application in the Xamarin Android Player, Nexus 5 (Lollipop), the entire layout is blank. The title is displayed, so I know this activity is being started. I can hit breakpoints in the OnCreate method too.

I'm using Xamarin.Android 6.0.

What am I doing wrong?

Resources/layout/Scoreboard.axml

<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:gravity="fill"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:columnCount="1"
    android:rowCount="3">
    <TextView
        android:id="@+id/scoreboard_team_1_name"
        android:background="@color/team1"
        android:gravity="fill"
        android:layout_height="0dp"
        android:layout_rowWeight="1"
        android:layout_width="match_parent"
        android:text="@string/team_1_name_placeholder" />
    <LinearLayout
        android:id="@+id/scoreboard_matches_layout"
        android:gravity="fill"
        android:layout_height="0dp"
        android:layout_rowWeight="4"
        android:layout_width="match_parent"/>
    <TextView
        android:id="@+id/scoreboard_team_2_name"
        android:background="@color/team2"
        android:gravity="fill"
        android:layout_height="0dp"
        android:layout_rowWeight="1"
        android:layout_width="match_parent"
        android:text="@string/team_2_name_placeholder" />
</GridLayout>

ScoreboardActivity.cs

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

namespace TableTennis.Droid
{
    [Activity]
    public class ScoreboardActivity : Activity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            Title = "Scoreboard";
            SetContentView(Resource.Layout.Scoreboard);
        }
    }
}