Component is part of the declaration of 2 modules

Question

I try to build an ionic 2 app. When I try the app in the browser with ionic serve or launch it on an emulator everything works fine.

But when I try to build it every

Answer 1

You may just try this solution ( for Ionic 3 )

In my case, this error happen when i call a page by using the following code

 this.navCtrl.push("Login"); // Bug

I just removed the quotes like the following and also imported that page on the top of the file which i used call the Login page

this.navCtrl.push(Login); // Correct

I can't explain the difference at this time since i'm a beginner level developer