module Thor::Util

def self.find_class_and_task_by_namespace!(namespace)

could not be found.
The same as namespace_to_thor_class_and_task!, but raises an error if a klass
def self.find_class_and_task_by_namespace!(namespace)
  klass, task = find_class_and_task_by_namespace(namespace)
  raise Error, "Could not find namespace or task #{namespace.inspect}." unless klass
  return klass, task
end