error

     Failure/Error: click_button 'submit'
     Encoding::CompatibilityError:
       incompatible encoding regexp match (UTF-8 regexp with ASCII-8BIT string)
     # ./spec/integration/searches_spec.rb:16:in `block (2 levels) in <top (required)>'

searches_spec.rb

require 'spec_helper'

describe SearchesController do 
  it "should do something" do
    visit searches_path
    
    page.fill_in 'search_name', :with => 'oak'

    click_button 'submit'
  end
end