CoreLocation kCLErrorDomain error 5

Question

I subclassed a CLRegion to support Polygons via overriding containsCoordinate: to use ray casting logic instead of the original distance crunching logi

Answer 1

It is also possible to get this error code back when your latitude and longitude values don't make sense. (I'd transposed them, for example, and was vexed by this error for a while.)