Ionic 3 iOS build --prod Not Working: Declarations of 2 Modules Error
around this issue In my case, the solution was to delete the .module.ts
(ngModule file) from each component and page folder generated by Ionic.
Then, I made sure the components from my app were listed as declarations in
my app.module.ts file. The app
Date : November 21 2020, 03:00 PM , By : Gavin Biesheuvel