From 6fbfd67c0524cd1c905bd6055189d2f08b6d1a30 Mon Sep 17 00:00:00 2001
From: Keith Dahlby <dahlbyk@gmail.com>
Date: Mon, 8 Jul 2019 23:15:03 -0500
Subject: [PATCH] [Core] Avoid ambiguous call

CS0121: The call is ambiguous between the following methods or
properties: 'Device.InvokeOnMainThreadAsync(Action)' and
'Device.InvokeOnMainThreadAsync(Func<Task>)'

https://github.com/dotnet/roslyn/issues/14885
https://github.com/dotnet/csharplang/issues/98
---
 Xamarin.Forms.Core/Device.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Xamarin.Forms.Core/Device.cs b/Xamarin.Forms.Core/Device.cs
index fe440e6a5dd..5ccfcb3154b 100644
--- a/Xamarin.Forms.Core/Device.cs
+++ b/Xamarin.Forms.Core/Device.cs
@@ -124,7 +124,7 @@ public static Task<T> InvokeOnMainThreadAsync<T>(Func<T> func)
 
 		public static Task InvokeOnMainThreadAsync(Action action)
 		{
-			object wrapAction() { action(); return null; }
+			string wrapAction() { action(); return null; }
 			return InvokeOnMainThreadAsync(wrapAction);
 		}