Maintenance of Ruby 2.0.0 ended on February 24, 2016. Read more
Raised when an incorrect value is used.
# File rss/rss.rb, line 135 def initialize(tag, value, attribute=nil) @tag, @value, @attribute = tag, value, attribute message = "value <#{value}> of " message << "attribute <#{attribute}> of " if attribute message << "tag <#{tag}> is not available." super(message) end