mscorlib: Cannot create an abstract class error when implementing IExtensionConfigProvider

[gdodd1977]

I'm implementing a custom function binding for dependency injection. I have that custom binding attribute as well as an abstract base class implementing IExtensionConfigProvider in a common dll. I'm referencing that common dll in an azure function project and inheriting from that abstract base class. When I launch the function locally, I get an error saying A ScriptHost error has occurred mscorlib: Cannot create an abstract class.

I'm on cli version 1.0.12.1.

[mathewc]

This is coming from the activation code here. We currently assume registered config providers are concrete Types and we Activator.CreateInstance them.

PR out now with the fix - we'll get it in the next release.