Location Services not Enabled

UPDATE: location services have changed in iOS, with further emphasis on privacy. Since iOS 7 or 8, they are now located under Settings>Privacy>Location Services.

If you get the following error from iGIS:

“iGIS could not retrieve your current location or compass direction. The application must be allowed to access your location data for this function to work”

Then make sure you have location services enabled in the Settings app, under General:

Enable location services for your device
Location services must also be enabled for the iGIS application