From c5dd9f80d1eaf07208eaf659b742cafb405932b5 Mon Sep 17 00:00:00 2001
From: Francesco Bonacci <francesco.bonacci@outlook.com>
Date: Wed, 25 Jul 2018 14:34:22 +0200
Subject: [PATCH] Add check for null _root flex item (#3235)

---
 Xamarin.Forms.Core/FlexLayout.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Xamarin.Forms.Core/FlexLayout.cs b/Xamarin.Forms.Core/FlexLayout.cs
index 25bd62462..cb394c8b8 100644
--- a/Xamarin.Forms.Core/FlexLayout.cs
+++ b/Xamarin.Forms.Core/FlexLayout.cs
@@ -388,6 +388,9 @@ namespace Xamarin.Forms
 
 		protected override void LayoutChildren(double x, double y, double width, double height)
 		{
+			if (_root == null)
+				return;
+			
 			Layout(x, y, width, height);
 			foreach (var child in Children) {
 				var frame = GetFlexItem(child).GetFrame();