xerrors

var (
	ExitCodeObjectNotFound             = 2
	ExitCodeInstanceNotFound           = 3
	ExitCodeInstanceActionNotSupported = 4
	ExitCodeResizeNoSuchStage          = 5

	ObjectNotFound             = newIndexedError("object not found", ExitCodeObjectNotFound)
	InstanceNotFound           = newIndexedError("instance not found", ExitCodeInstanceNotFound)
	InstanceActionNotSupported = newIndexedError("instance action not supported", ExitCodeInstanceActionNotSupported)

	// ResizeNoSuchStage says the chain has no stage of that number to run
	// here. It is how a node driving a resize learns it has reached the end
	// of the chain, which no one can tell it: the stages are read from the
	// chain, and only the node walking it knows how many there are.
	ResizeNoSuchStage = newIndexedError("no such stage", ExitCodeResizeNoSuchStage)
)