Unable to build after installing Auth0.OidcClient.WinForms NuGet Package

[camohiddendj]

Describe the problem

NETSDK1135 SupportedOSPlatformVersion 10.0.18362.0 cannot be higher than TargetPlatformVersion 7.0. Auth0Test C:\Program Files\dotnet\sdk\5.0.301\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets 185

What was the expected behavior?

Solution to build successfully.

Reproduction

Step 1.. Create new .NET 5.0 WinForms Project Step 2.. Add Auth0.OidcClient.WinForms via NuGet Step 3.. Attempt to build

Environment

WinFormsApp1-master.zip

• Version of this library used: 3.22
• Which framework are you using, if applicable: .NET 5.0
• Other modules/plugins/libraries that might be involved:
• Any other relevant information you think would be useful:

[frederikprijck]

Hey,

This is a known thing with .NET 5 and less related to the SDK, see https://github.com/auth0/auth0-oidc-client-net/issues/167. I know it is a confusing error and not extremely well documented in the .NET documentation. Mainly it has to do with a mismatch between SupportedOSPlatformVersion and TargetPlatformVersion, when adding Microsoft.Windows.SDK.Contracts, which is a dependency of one of the dependencies in our SDK, see:

What you should do is update your csproj:

<TargetFramework>net5.0-windows10.0.18362.0</TargetFramework>

Be sure to also install Microsoft.Windows.CsWinRT, as mentioned in https://github.com/auth0/auth0-oidc-client-net/issues/167.

I downloaded your sample, did the above changes and the build succeeded.