The interests of all persons in the property, whether such persons are known or unknown, must be set forth in the complaint specifically and particularly as far as known to the plaintiff, and if one or more of the parties, or the share or quantity of interest of any of the parties, is unknown to the plaintiff, or is uncertain, or contingent, or the ownership of the inheritance depends upon an executory devise, or the remainder is a contingent remainder so that such parties cannot be named, that fact must be set forth in the complaint.