User blog comment:Rappy 4187/Technical Update: December 7, 2015/@comment-24473195-20151209160356/@comment-5558012-20151210004932

Depending on how you look at it not adding a type (or signature) is the error and what pops up is the error message telling you what you need to do (more interactive than the traditional error message). Solution -> add Error in big letters on the template type dialogue.