Forum Discussion

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

Microsoft

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

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
Brass Contributor
Nov 04, 2020
I forgot to add a screenshot.
- alhenriq_ms
  Microsoft
  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.
  - simonsays_pt
    Brass Contributor
    Nov 05, 2020
    alhenriq_msHere is the version of the bootloader as requested.
    
    PS C:\Windows\system32> Get-WmiObject -Class Win32_Product | Where-Object{$_.Name -eq "Remote Desktop Agent Boot Loader"
    }
    
    IdentifyingNumber : {A38EE409-424D-4A0D-B5B6-5D66F20F62A5}
    Name : Remote Desktop Agent Boot Loader
    Vendor : Microsoft Corporation
    Version : 1.0.0.0
    Caption : Remote Desktop Agent Boot Loader
    
    When you say that the version 2548.x is in production, isn't supposed to be that version offered in the link by Microsoft? But, the download link points to the 2195.x!
    
    Thank you