After installing the module, when I attempted to enable it, I received the following error:

FieldException: Attempt to create an instance of field user_id without an entity type. in field_create_instance() (line 457 of C:\wamp\www\eve\modules\field\field.crud.inc).

The website encountered an unexpected error. Please try again later.

I checked further and noted the fields are present in the SQL database.
Was running 7.8 at the time.