class Cucumber::CucumberExpressions::AmbiguousParameterTypeError

# File lib/cucumber/cucumber_expressions/errors.rb, line 13
      def initialize(parameter_type_regexp, expression_regexp, parameter_types, generated_expressions)
        super(<<-EOM)
Your Regular Expression /#{expression_regexp.source}/
matches multiple parameter types with regexp /#{parameter_type_regexp}/:
   #{parameter_type_names(parameter_types)}

I couldn't decide which one to use. You have two options:

1) Use a Cucumber Expression instead of a Regular Expression. Try one of these:
   #{expressions(generated_expressions)}

2) Make one of the parameter types preferential and continue to use a Regular Expression.

        EOM
      end