Warnings in ProjectBuilder v. 1.0.1 v.63.0


Whenever I do an initial build of a new project, I get an warning saying that the directory, e.g., ProjectName/build/ProjectHeaders/ does not exist. Usually the warning will go away after a subsequent build, and if not, I can always place the directory there by hand. Is this a bug in the new version of ProjectBuilder, is it a misconfiguration somewhere, or is it just a meaningless warning I should ignore?