Electron + react-navigation

I’m having trouble following the “Using Electron with Expo for Web” tutorial in a project that uses react-navigation. When I import react-navigation, nothing renders. In the tutorials it says,

" * Every universal package you have installed will be transpiled automatically, this includes packages that start with the name: expo , @expo , @unimodules , @react-navigation , react-navigation , react-native . You can add more by appending them to the array for key expo.web.build.babel.include in your app.json (this feature is experimental and subject to change)."

I don’t see the key expo.web.build.babel.include in app.json, however. Is there an example of how to include that key? Could its absence be why react-navigation is not working?