Cesiumjs Globe does not appear in Cordova mobile app

My cesiumjs+angular app runs perfectly in browser.
I have build mobile app using cordova successfully.
Globe does not appear in android and renderer error appears in iphone.
I am using ios imagery, and also local imagery layer doesnt apear too. How to fix the issue?

        new Cesium.IonImageryProvider({ assetId: 3 })


Welcome to the community :fireworks:

I looked through the community forum and found a few threads that should help you get started with CesiumJS and Cordova

In particular, be sure to check out the first thread. Are you currently getting an error message? If so, what error are you receiving? Is other functionality working or does the entire CesiumJS part of the application appear to be broken?