title: Problem installing Android workload for MAUI Visual Studio 2022
body: <p>I have installed Visual Studio 2022 Preview 4.1 according to these instructions: <a href="https://docs.microsoft.com/en-us/dotnet/maui/get-started/installation" rel="noreferrer">https://docs.microsoft.com/en-us/dotnet/maui/get-started/installation</a>. I started a new CometApp project and I get the following error: NU1012  Platform version is not present for one or more target frameworks, even though they have specified a platform: net6.0-maccatalyst, net6.0-ios, net6.0-android.</p>
  <p>I then run: dotnet workload install android</p>
  <p>....and get the following error.</p>
  <blockquote>
  <p>Failed to update the advertising manifest
  microsoft.net.workload.emscripten: Failed to validate package signing.</p>
  <p>Verifying
  Microsoft.NET.Workload.Emscripten.Manifest-6.0.100.6.0.0-rtm.21505.3</p>
  <p>error: NU3004: The package is not signed.</p>
  <p>Package signature validation failed.</p>
  <p>. Failed to update the advertising manifest
  microsoft.net.workload.mono.toolchain: Failed to validate package
  signing.</p>
  <p>Verifying
  Microsoft.NET.Workload.Mono.ToolChain.Manifest-6.0.100.6.0.0-rtm.21508.16</p>
  <p>error: NU3004: The package is not signed.</p>
  <p>Package signature validation failed.</p>
  </blockquote>
  <p>I have already added this source to Nuget config:</p>
  <blockquote>
  <p><a href="https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json" rel="noreferrer">https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json</a></p>
  </blockquote>
  <p>Any suggestions to what might be the issue?</p>