From 036e6c3c4f9cf6d240aed91f25c0cf16037acc0c Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Wed, 31 May 2023 18:50:55 +0100
Subject: [PATCH] add error if user is publishing a library on nuget.

---
 packages/Avalonia/AvaloniaPrivateApis.targets | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/Avalonia/AvaloniaPrivateApis.targets b/packages/Avalonia/AvaloniaPrivateApis.targets
index 368d69322d..e7807aeb78 100644
--- a/packages/Avalonia/AvaloniaPrivateApis.targets
+++ b/packages/Avalonia/AvaloniaPrivateApis.targets
@@ -18,5 +18,7 @@
       <ReferencePathWithRefAssemblies Include="$(MSBuildThisFileDirectory)/../lib/$(AvaloniaUnstableApiFrameworkToUse)/*.dll"/>
     </ItemGroup>
     <Warning Text="AvaloniaAccessUnstablePrivateApis is Enabled: This means you are using unstable internal APIs, and your code may be depending on APIs which may change or be removed in future versions of Avalonia. Set AvaloniaAccessUnstablePrivateApis to 'False' to disable this warning." />
+    <Error Condition="'$(IsPackable.ToLowerInvariant())' == 'true' and '$(AvaloniaAccessUnstablePrivateApis)' == 'true' and '$(Avalonia_I_Want_To_Use_Private_Apis_In_Nuget_Package_And_Promise_To_Pin_The_Exact_Avalonia_Version_In_Package_Dependency)' != 'true'"
+           Text="It seems that you are using private APIs in a nuget package, please follow this guide https://github.com/AvaloniaUI/Avalonia/wiki/Using-private-apis-in-nuget-packages" />
   </Target>
 </Project>