I recently upgraded ionic to the latest version (from 3.2.1 to 3.6.1) and encountered this error when calling navCtrl.popToRoot().
Uncaught (in promise): removeView was not found
This happens when I load a page that has ion-tabs and try to pop() without changing a tab. If I select a different tab before calling pop(), the error doesn’t show. If I select a different tab, then select the first tab again, the error also doesn’t show.
Any ideas? Let me know if you need more info.