App crashing as screen changes

[Anke]

@Robert_Plummer

Ive checked the properties in designer. It has my app key and the other details are blank as they are set in the code blocks. What are you suggesting is wrong please.

I have never used the Navigation component.
See here and check / try the test aia.

Testing the next release of MIT App Inventor (nb183)

Here’s an example app I built that uses the Navigation component to tell you how to get to Carnegie Hall. This will only work on ai2-test until we do the release, and you will need to provide your own API key from OpenRouteService. HowToGetTo.aia (5.6 KB)

HOW TO: Use the Navigate control

Simple Navigate by SteveJG [NavigateRose2] This tutorial is an example of one way to use the Navigate tool to build a Simple Navigate app. The instructions are intended for intermediate or advanced users of App Inventor 2. There are no detailed instructions. Provide similar code in your app. The Blocks are the documentation. Navigate Control The Navigate control provides ‘turn by turn’ directions used to get between two locations. The routing output is similar to directions provided by the G…