Resque cannot load module - no such file
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I am doing `resque` in Rails. In the Rails project, I have a file name `setup.rb` and `helper.rb` in the same directory. In `setup.rb` I have

    require './helper'

When I tried to run `bundle exec rake resque:work QUEUE="*"` or `rake resque:work QUEUE="*"` I got error. The error is:

    No such file to load -- ./helper

When I tried to rails console, `Dir.chdir` to that directory and type in `require './helper'` it return true, which means it works fine. I cannot explain why the `setup.rb` cannot require './helper'. 