No corresponding geographic location could be found for one of the specified addresses. This may be due to the fact that the address is relatively new, or it may be incorrect.
A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.
The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.
The geocode for the given address or the route for the given directions query cannot be returned due to legal or contractual reasons.
The given key is either invalid or does not match the domain for which it was given.
A directions request could not be successfully parsed.