The newly introduced dependency on Microsoft.Extensions.DependencyInjection (>= 3.0.1) prevents the package from installing in projects which use older SDKs!


Since the App packages are explicitly referenced by the SDK, you cannot simply upgrade to v3.0.1.
Therefore the targeted builds should reference the proper version of this dependency, i.e. .NETCoreApp,Version=v2.1 => Microsoft.Extensions.DependencyInjection (>=2.1.0)