Display entity reference field in a views block
Just coming from memory I would recommend something like this:


Create a view of what you want to show. (In your case, a view of content-type="contributors")
Create a relationship in that view to the content that contains the reference field. (Just click on add a relationship, and search for the name of your reference field)
Create a contextual filter to filter by ID. This filter will also be the reference field name. (choose "Provide default value" then "Content ID from URL") This contextual filter will use your relationship.
Restrict that Views block to only show on that content type (in block settings of course).


What you're doing is adding a relationship to that reference field. Then it is available as a contextual filter, where you can then provide a default value to filter by content ID.

Note: keep in mind if ever your reference field is not available as a relationship in your view, you may need to first add a content or node based relationship.