RSS does not allow for free-form tag names, so if an RSS feed contains a tag that we don’t know about, an UnknownTagError is raised.
Raised when an unexpected tag is encountered.
Attributes are in key-value form, and if there’s no value provided for an attribute, a NotAvailableValueError will be raised.
Raised when an unknown conversion error occurs.
Raised when a conversion failure occurs.
Raised when a required variable is not set.
Raised when a RSS::Maker attempts to use an unknown maker.
Raised when RubyGems is unable to load or activate a gem. Contains the name and version requirements of the gem that either conflicts with already activated gems or that RubyGems is otherwise unable to activate.
Raised when there are conflicting gem specs loaded
Raised by Gem::Resolver when a Gem::Dependency::Conflict reaches the toplevel. Indicates which dependencies were incompatible through conflict and conflicting_dependencies
Signals that a file permission error is preventing the user from operating on the given directory.
Raised by Gem::Resolver when dependencies conflict and create the inability to find a valid possible spec for a request.
Signals that a remote operation cannot be conducted, probably due to not being connected (or just not finding host).
Raised by Gem::Validator when something is not right in a gem.
Raised by Resolver when a dependency requests a gem for which there is no spec.
exceptions
Raised by Timeout#timeout when the block times out.