class Cucumber::CucumberExpressions::AmbiguousParameterTypeError

def expressions(generated_expressions)
  generated_expressions.map{|ge| ge.source}.join("\n   ")
end

def initialize(parameter_type_regexp, expression_regexp, parameter_types, generated_expressions)
  super(<<-EOM)
egular Expression /#{expression_regexp.source}/
s multiple parameter types with regexp /#{parameter_type_regexp}/:
arameter_type_names(parameter_types)}
dn't decide which one to use. You have two options:
 a Cucumber Expression instead of a Regular Expression. Try one of these:
xpressions(generated_expressions)}
e one of the parameter types preferential and continue to use a Regular Expression.
  EOM
end

def parameter_type_names(parameter_types)
  parameter_types.map{|p| "{#{p.name}}"}.join("\n   ")
end