When migrating my app to Ionic-V4 I get this error on all my pages that have forms Can’t bind to ‘formGroup’ since it isn’t a known property of ‘form’ I think it might because we are moving to a new version of angular, but it is unclear to me, what steps I have to take to do the upgrade. Typica…

@developergeme Try to include ReactiveFormsModule in the module. [Stefan Svrkota] Can't bind to 'formGroup' since it isn't a known property of 'form' angular, typescript, angular2-forms answered by Stefan Svrkota on 06:11PM - 25 Aug 16 …

[image] lucasbasquerotto: ReactiveFormsModule Great, that worked. I did see the stackoverflow article, but kind of ignored it as it was pure angular. but adding import { ReactiveFormsModule} from ‘@angular/forms’; and @NgModule({ imports: [ TranslateModule.forChild(), CommonModule, …

If you are lazy loading (which is the default if you use the basic ionic 4 templates e.g. side menu or tabs) then you have to do this to the page module as well as the app.module.ts. I’m still new to this so I’m not sure why yet but this fixed it for me.

Doesn’t fix it for me. My app.module.ts import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { RouteReuseStrategy } from '@angular/router'; import { IonicModule, IonicRouteStrategy } from '@ionic/angular'; import { SplashScreen } from '@ionic-…

Same here. did you got any solution

Thank you. It’s work for me only add in page.module.ts in tabs templates :slight_smile:

Ionic v4 migration issue

Ionic Framework

gsoulie February 20, 2019, 8:29am 9

Yes, see my other answer here https://forum.ionicframework.com/t/ionic-4-form-validation/134058/18

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Ionic v4 migration issue

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