Page has a @IonicPage decorator, but it does not have a corresponding “NgModule”

Question

I was working on page navigation in Ionic. After using ionic serve, I got this error:

The Page with .ts extension has a @IonicPage decorator, but

Answer 1

When you add a page using Ionic CLI for example

ionic generate page newPage

then it automatically generates file newPage.module.ts and inside newPage.ts it generates a line of text as

@IonicPage()

Well, you must delete newPage.module.ts and delete @IonicPage() from newPage.ts

then open app.module.ts and add newPage inside declarations and entry components.