npm run ionic:build --prod giving strange error

Question

When I am trying to run npm run ionic:build --prod, it is giving me below errors:

Error: Cannot determine the module for class OverlayPor

Answer 1

I ran into this same error. For me it was due to inconsistent Ionic imports (some from top-level ionic-angular, and some importing directly from the component, e.g. ionic-angular/components/loading/loading-controller).

https://stackoverflow.com/a/50858210/6599076