Cannot determine the module for class IonicApp command: ionic cordova build <platform> --prod --release failure

Ionic Framework ionic-v3
8

I have this exact same issue:

typescript error 
            Cannot determine the module for class OverlayPortal in 
            /Users/Francesco/Apps/marchiapp/node_modules/ionic-angular/umd/components/app/overlay-portal.d.ts! Add 
            OverlayPortal to the NgModule to fix it. Cannot determine the module for class IonicApp in 
            /Users/Francesco/Apps/marchiapp/node_modules/ionic-angular/umd/components/app/app-root.d.ts! Add IonicApp to 
            the NgModule to fix it. Cannot determine the module for class ClickBlock in 
            /Users/Francesco/Apps/marchiapp/node_modules/ionic-angular/umd/components/app/click-block.d.ts! Add 
            ClickBlock to the NgModule to fix it.

How did you solve it?

Best,