IContainer.Resolve not found

I’m having an issue copying files over, keep getting error saying file not found. If I check full path and file, it’s all there. It seems the C# code that triggers hangfire cannot be found.

The odd thing is, this works when I run it local. When we deploy to dev, file cannot be found. Because of that, I found this article. I tried created the ContainerJobActivator class listed here:

The override method “ActivateJob” gives me an error on _container.Resolve(type). For some reason IContainer does not have a method Resolve. I looked to see if there are extenstions or anything, but nothing is listed. Anyone know how to fix this?