Standard error reporting functionality.
Standard error reporting functionality.

macmillanpublishers/HTMLBook,gitenberg-dev/HTMLBook,mushroomgithub/HTMLBook,oreillymedia/HTMLBook,wastemobile/HTMLBook,mushroomgithub/HTMLBook,mushroomgithub/HTMLBook,gitenberg-dev/HTMLBook,gitenberg-dev/HTMLBook,macmillanpublishers/HTMLBook,macmillanpublishers/HTMLBook,oreillymedia/HTMLBook,oreillymedia/HTMLBook,wastemobile/HTMLBook