Was this exception raised because the given name was missing?

Source Code

# File active_support/core_ext/name_error.rb, line 9
def missing_name?(name)
  if name.is_a? Symbol
    last_name = (missing_name || '').split('::').last
    last_name == name.to_s
  else
    missing_name == name.to_s
  end
end