class Roadie::CssNotFound

def build_message(extra_message = @extra_message)

TODO: Remove argument on version 4.0.
Redundant method argument is to keep API compatability without major version bump.
def build_message(extra_message = @extra_message)
  message = +%(Could not find stylesheet "#{css_name}")
  message << ": #{extra_message}" if extra_message
  message << "\nUsed provider:\n#{provider}" if provider
  message
end