rxjs/Subject.d.ts error : Class 'Subject' incorrectly extends base class 'Observable'

Question

I extracted sample template code from this tutorial and did below two steps to get started -

1. npm install // worked fine and created node_modules folder

Answer 1

Now we dont need the ionic-native module - we only need @ionic-native/core. Run

npm uninstall ionic-native --save

It will solve Your Problem..