[Bug] MSAL NuGet package needs an rd.xml to work correctly in UWP apps

Which Version of MSAL are you using ? MSAL 4.8.1

Platform UWP

What authentication flow has the issue?

• Desktop / Mobile
  • Interactive

Is this a new or existing app? a. The app is in production, and I have upgraded to a new version of MSAL

Repro Create a UWP app project in VS 2019. Add auth to it, as per https://docs.microsoft.com/en-us/azure/active-directory/develop/tutorial-v2-windows-uwp

Enable .NET Native compilation and run the app. Sign-in will throw an exception with the following error message: Authorize endpoint was not found in the openid configuration

Expected behavior Auth should work.

Actual behavior Exception is thrown.

Possible Solution

You should ship an rd.xml containing the following directive (or similar):

<Assembly Name="Microsoft.Identity.Client" Dynamic="Required All" />

cf https://devblogs.microsoft.com/dotnet/net-native-deep-dive-making-your-library-great/

[mfeingol]

@bgavrilMS: here’s a repro.

Build in x64 debug and observe that you can sign in by clicking on the Log in button.

Then build x64 release and try again. Instead of a successful login, the library will throw Microsoft.Identity.Client.MsalClientException: client info is null

MsalDotNetNative.zip

Please note that you will need to set your own client id and redirect id in MainPage.xaml.cs

Thanks.

[LDS2020]

@mfeingol, thank you for reporting this bug. I spent over a week trying to fix this and would never have thought to modify the rd.xml file. I made your suggested change and it now works.