# File lib/mongo/error/invalid_uri.rb, line 30
      def initialize(uri, details, format = nil)
        message = "Bad URI: #{uri}\n" +
                    "#{details}\n"
        message += "MongoDB URI must be in the following format: #{format}\n" if format
        message += "Please see the following URL for more information: #{Mongo::URI::HELP}\n"
        super(message)
      end