DockerBuild/Demo/NetAppDemo/App/AppDemo.runtimeconfig.json

{
  "runtimeOptions": {
    "tfm": "net5.0",
    "framework": {
      "name": "Microsoft.NETCore.App",
      "version": "5.0.0"
    },
    "configProperties": {
      "System.Reflection.Metadata.MetadataUpdater.IsSupported": false
    }
  }
}