Immaterial errors disregarded.

The court, in every stage of an action, must disregard any error or defect in the proceeding which does not affect the substantial rights of the adverse party; and no judgment shall be reversed or affected by reason of such error or defect. [R60, §2978; C73, §2690; C97, §3601; C24, 27, 31, 35, 39, § 11228; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §619.16 ] Immaterial exceptions, §624.15