@EishiFUN Thanks, I have a very small test app that reproduces this problem if it would be helpful. If you're interested in it, just let me know where to send it.

Thank you I appreciate it @mdevol. We were also able to reproduce it when we tested it

@mdevol I got a response from our team today about this: "The minimum .net framework version needed is 4.7.2. The user can update to that version to stop getting the exception. If they do not want to upgrade - we will have a fix ready by next week."

@EishiFUN Thanks for the update. I tried to update our project to 4.7.2, but couldn't get it build for non-GeoTab reasons. So, we're holding at 4.6.2 for now. I'll keep an eye out for the fix next week.

@mdevol Hey I did get an update that there is a myG update they are waiting on so this will be held up until next Tuesday. If I hear anything else I will let you know.

@EishiFUN Ok, thanks

@EishiFUN I got the latest GeoTab package that was released on Monday and was able to apply to our code with no issues. So consider this closed. Thanks for the help,

@mdevol Hey thanks a lot for following up! I am glad this ended up working. Thank you for being patient with us and bringing it up here in the community.

Pease reach out any time you have questions. We are always happy to help

@EishiFUN Bad news, this issue is back with the latest GeoTab nuget package 11.143.432. As mentioned above this issues was resolved in the prior nuget package 11.139.528. We are still using .NetFramework 4.6.2.

Here is the call we are making into GeoTab:

await geoTabAPI.AuthenticateAsync();

Here is the stack dump for the latest nuget package:

Inner Exception 2: System.PlatformNotSupportedException: Operation is not supported on this platform.
at System.Net.Http.HttpClientHandler.set_CheckCertificateRevocationList(Boolean value)
at Geotab.MachineSettings.GeneralMachineSettings..cctor()
--- End of inner exception stack trace ---
Inner Exception 1: System.TypeInitializationException: The type initializer for 'Geotab.MachineSettings.GeneralMachineSettings' threw an exception.
at Geotab.MachineSettings.GeneralMachineSettings.get_ApplicationVersion()
at Geotab.Checkmate.Web.WebServerInvoker..cctor()
--- End of inner exception stack trace ---
Outer Exception: System.TypeInitializationException: The type initializer for 'Geotab.Checkmate.Web.WebServerInvoker' threw an exception.
at Geotab.Checkmate.Web.WebServerInvoker.get_SharedHttpClient()
at Geotab.Checkmate.Web.WebServerInvoker.d__54`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Geotab.Checkmate.Web.WebServerInvoker.d__28`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Geotab.Checkmate.Web.WebServerInvoker.<>c__DisplayClass60_0`1.<b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
at Geotab.Tasks.TaskExtension.d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at Geotab.Tasks.TaskExtension.d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
at Geotab.Tasks.TaskExtension.d__8`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Geotab.Checkmate.Web.WebServerInvoker.d__25`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Geotab.Checkmate.API.d__58.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Geotab.Checkmate.API.d__47.MoveNext()

Hey @mdevol thanks for reaching out and sorry has interrupted you again let me talk to the team who worked on this and see what they say. I will let you know what I hear from them as soon as I do!