From 80e4e96ef28bdade9415181b0de1f9e1b3b91d4d Mon Sep 17 00:00:00 2001
From: Nikita Tsukanov <keks9n@gmail.com>
Date: Tue, 9 Jul 2019 21:27:55 +0300
Subject: [PATCH] 
 https://github.com/xamarin/xamarin-android/issues/1879#issuecomment-412281057

---
 build/Base.props | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/build/Base.props b/build/Base.props
index 2968fe5175..a8702d32a8 100644
--- a/build/Base.props
+++ b/build/Base.props
@@ -1,6 +1,10 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
-    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.3" />
+    <!--
+       Do not upgrade, see 
+       https://github.com/xamarin/xamarin-android/issues/1879#issuecomment-412281057 
+    -->
+    <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.4.0" />
   </ItemGroup>
 </Project>