Microsoft.Management.Infrastructure.dll is delay-signed or test-signed

I am trying to use the Microsoft.Management.Infrastructure.dll as a reference in a c# project. I have downloaded the package from nuget (https://www.nuget.org/packages/Microsoft.Management.Infrastructure/) which gives me version 1.0.0.0 . I have the reference included in the build as “Copy Local: True”, and it is properly copied to my /bin/ directory.

Everything works in my development environment without issue. However, when I move the compiled output to another machine, I receive an error:

System.IO.FileLoadException: Could not load file or assembly
'Microsoft.Management.Infrastructure, Version=`1.0.0.0. Culture=neutral,
PublicKeyToken=31bf3856ad364e35' or one of its dependencies. Strong name validation failed

I checked the signing with sn.exe and it shows the following:

`.\Microsoft.Management.Infrastructure.dll is a delay-signed or test-signed assembly`

I see that new preview versions are available on the nuget page, but I have a lot of code that relies on the methods in this .dll, and this code is targeting production, so I am very hesitant to include non-release code.

[TravisEz13]

@SteveL-MSFT The error indicates that this was targeting the full framework. We typically don’t strong name sign assemblies when we are intending the binary for .NET Core.

[iSazonov]

For more information see https://github.com/dotnet/runtime/issues/24803

As workaround you could use mmi.dll from PowerShell distrib.