System.Management.MangementScope Exception with Dotnet Core 3 Release

[MakisupaVT]

I'm attempting to upgrade a project to Dotnet Core 3 which uses System.Management for WMI calls. When connecting to my MangementScope:

var scope = new ManagementScope(@"\\computer\root\CIMV2", new ConnectionOptions());

Program dies with the exception:

An unhandled exception has occurred while executing the request.
System.Runtime.InteropServices.MarshalDirectiveException: Cannot marshal 'parameter dotnet/corefx#3': Cannot marshal a string by-value with the [Out] attribute.
at System.StubHelpers.StubHelpers.ThrowInteropParamException(Int32 resID, Int32 paramIdx)
at System.Management.ManagementPath.GetWbemPath(IWbemPath wbemPath)
at System.Management.ManagementScope.set_prvpath(ManagementPath value)
at System.Management.ManagementScope..ctor(ManagementPath path, ConnectionOptions options)

I've seen the same Marshal exception on recent Core 3 preview posts that were supposedly fixed, but this issue seems to persist.

[danmoseley]

Can you please make sure you have the latest version of System.Management. Perhaps your project has locked it to an older version.

https://github.com/dotnet/corefx/issues/38093

[MakisupaVT]

My bad here. Although I updated all the NuGet packages in my solution, and I thought I got them all, I missed updating System.Management in my Management project and it was at version 4.5.0. Upgrading to 4.6.0 solved my issue.