Andy Hall tackles an issue where Value cannot be null. Parameter name: title Value when switching navigation pages in GP2013.
In Touch with Dynamics (GP): Value cannot be null. Parameter name: title Value when switching navigation pages in GP2013
Off-Topic & MiscellaneousGP 2013
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.