angular - Cannot find module 'rxjs-compat/Observable'

Question

I am currently upgrading angular 4 to angular 6 code. I have installed "rxjs": "^6.3.2" and un-installed rxjs-compact as I have migrated the code to use the new rxjs operators. I am still getting the following errors. Dont know the reason why

ERROR in [at-loader] ./node_modules/rxjs/BehaviorSubject.d.ts:1:15
    TS2307: Cannot find module 'rxjs-compat/BehaviorSubject'.

ERROR in [at-loader] ./node_modules/rxjs/Observable.d.ts:1:15
    TS2307: Cannot find module 'rxjs-compat/Observable'.

ERROR in [at-loader] ./node_modules/rxjs/Observer.d.ts:1:15
    TS2307: Cannot find module 'rxjs-compat/Observer'.

ERROR in [at-loader] ./node_modules/rxjs/Operator.d.ts:1:15
    TS2307: Cannot find module 'rxjs-compat/Operator'.

ERROR in [at-loader] ./node_modules/rxjs/Subject.d.ts:1:15
    TS2307: Cannot find module 'rxjs-compat/Subject'.

ERROR in [at-loader] ./node_modules/rxjs/Subscription.d.ts:1:15
    TS2307: Cannot find module 'rxjs-compat/Subscription'.

Answer 1

This will solve the issue:

npm install --save rxjs-compat 

See this GitHub issue

Edit : as per 10th October 2019 ,you can use below syntax as the earlier or the above one was a workaround.

import { Observable } from 'rxjs/Observable';

Reference doc: https://github.com/ReactiveX/rxjs/blob/master/docs_app/content/guide/v6/migration.md#dropping-the-compatibility-layer