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simonsays_pt's avatar
simonsays_pt
Brass Contributor
Nov 04, 2020

Windows Virtual Desktop Agent Upgrade Failed

Can't tell why, but the WVD Agent is updating and for some reason can't start up with new version and then rollback to the previous version. But doesn't get out of this loop and the service stops wor...
alhenriq_ms's avatar
alhenriq_ms
Icon for Microsoft rankMicrosoft
Nov 04, 2020

Hi simonsays_pt 

Can you please look in the event logs on that VM (Under "Windows Logs" -> Application)

This looks like an exception caught by the RDAgentBootLoader - if your application log has too many entries - you can filter the current log and apply this XML filter

<QueryList>
<Query Id="0" Path="Application">
<Select Path="Application">*[System[Provider[@Name='RDAgentBootLoader']]]</Select>
</Query>
</QueryList>

 

We can start here to see what why the service is failing.

thanks,

-al

  • simonsays_pt's avatar
    simonsays_pt
    Brass Contributor
    Nov 04, 2020

    alhenriq_msthanks in advance.

     

    Here is the exception:

     

    BootLoader exception:System.MissingMethodException: Method not found: 'Microsoft.Extensions.DependencyInjection.IHttpClientBuilder Microsoft.Extensions.DependencyInjection.HttpClientFactoryServiceCollectionExtensions.AddHttpClient(Microsoft.Extensions.DependencyInjection.IServiceCollection, System.String, System.Action`1<System.Net.Http.HttpClient>)'.
    at Microsoft.RDInfra.Diagnostics.Agent.DiagnosticsHelperMethods.AddRDAgentDiagnostics(IServiceCollection services, RDComponent currentComponent)
    at Microsoft.RDInfra.RDAgent.Service.Startup.ConfigureServices(IServiceCollection services) in E:\agent\_work\2\s\src\RDAgent\src\Service\Startup.cs:line 99
    --- End of stack trace from previous location where exception was thrown ---
    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
    at Microsoft.AspNetCore.Hosting.ConventionBasedStartup.ConfigureServices(IServiceCollection services)
    at Microsoft.AspNetCore.Hosting.Internal.WebHost.EnsureApplicationServices()
    at Microsoft.AspNetCore.Hosting.Internal.WebHost.Initialize()
    at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
    at Microsoft.RDInfra.RDAgent.Service.RDAgentMain.CreateRDAgentWebHost(String workingDirectory) in E:\agent\_work\2\s\src\RDAgent\src\Service\RDAgentMain.cs:line 40
    at System.Dynamic.UpdateDelegates.UpdateAndExecuteVoid2[T0,T1](CallSite site, T0 arg0, T1 arg1)
    at RDAgentBootLoader.RDAgentBootLoader.<BootLoaderStartAsync>d__8.MoveNext() in C:\agent\_work\92\s\src\RDAgent\src\RDAgentBootLoader\RDAgentBootLoader.cs:line 53

    • simonsays_pt's avatar
      simonsays_pt
      Brass Contributor
      Nov 04, 2020

      I forgot to add a screenshot.

      • alhenriq_ms's avatar
        alhenriq_ms
        Icon for Microsoft rankMicrosoft
        Nov 04, 2020

        simonsays_pt 

         

        Yes thanks for providing the error message - can you provide me with the version of the bootloader - please use this powershell command

        Get-WmiObject -Class Win32_Product | Where-Object{$_.Name -eq "Remote Desktop Agent Boot Loader"}

        This is a rare occurrence where the service fails the load the updated WVD Agent - the agent version you have is 2195.x and I believe what's in production is 2548.x - the upgrade is failing.

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