@InvictaMoto-0 said in New to Navigation App:
No route could be calculated using your offline maps........ Go Online"
Well, you have to have the routes downloaded for offline usage! If you did not do that explicitly the app requires Connectivity to download the route from your account. Tip: check the setting "download routes for offline usage automatically", or something like that.
Doing so enables you to start a route from your "downloads" folder when in offline mode, since it automatically downloads the route for offline usage anytime you open it on WiFi or 4g. Think of this alike to having a route downloaded onto the SD card on a dedicated satnav, without the route in the card it cannot calculate, even though it's maps are available.
You can do without predownloading, but then to start the route you need connectivity.
Edit: if you did all this above, forget my comment... Probably your offline maps were corrupted.