Json to record list problem (ArdoJSON)

I'm getting the following error when calling into the Google API with ardoHTTP and using ArdoJSON to capture the result -- Unable to cast object of type 'ssJsonTest.STGetDirectionsResponseStructure' to type 'OutSystems.HubEdition.RuntimePlatform.Db.IOSList'.

I created the json structures by using the OS REST feature. I kept getting 404 error with that so I switched to using ardo. Can someone please tell me what's wrong?

espace is attached. Thanks!!!