Uninitialized constant ActionView on Linux installation

When I try to start up my Mongrel server using mongrel_rails start, i
keep getting this error on the third line of my environment.rb file. The
third line is:

ActionView::Base.field_error_proc = proc { |input, instance| input }

The error Im getting is that ActionView is not initialized. When I do
gem list, I see all the new rails gems. What do you guys think can be
going wrong. Do I need to somehow require ‘gems’ or something like that?