Indicates that the DNS response was unable to be decoded.
Indicates that the DNS request was unable to be encoded.
A DNS query abstract class.
Installs RubyGems itself. This command is ordinarily only available from a RubyGems checkout or tarball.
A FetchError exception wraps up the various possible IO and HTTP failures that could happen while downloading from the internet.
A FetchError that indicates that the reason for not being able to fetch data was that the host could not be contacted
Raised when a bad requirement is encountered