rxjs-compat NOT automatically installed

Per the paragraph on the announcement blog page:

For example, the command ng update @angular/core will update all of the Angular framework packages as well as RxJS and TypeScript, and will run any schematics available on these packages to keep you up to date. As part of this one command, we’ll automatically install rxjs-compat into your application to make the adoption of RxJS v6 smoother.

However, after running the ng upgrade commands, rxjs-compat was NOT automatically installed. When I ran my app, there were several errors related to rxjs

node_modules/rxjs/Observable.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/Observable'.
src/app/students/students.component.ts(2,10): error TS2305: Module '"/Users/john/Dev/DotNet/TimeTracker/node_modules/rxjs/Observable"' has no exported member 'Observable'.
src/app/students/students.service.ts(3,10): error TS2305: Module '"/Users/john/Dev/DotNet/TimeTracker/node_modules/rxjs/Observable"' has no exported member 'Observable'.

Versions

Angular CLI: 6.0.0
Node: 10.0.0
OS: darwin x64
Angular: 6.0.0
... animations, cli, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.6.0
@angular-devkit/build-angular     0.6.0
@angular-devkit/build-optimizer   0.6.0
@angular-devkit/core              0.6.0
@angular-devkit/schematics        0.6.0
@ngtools/webpack                  6.0.0
@schematics/angular               0.6.0
@schematics/update                0.6.0
rxjs                              6.1.0
typescript                        2.7.2
webpack                           4.6.0

Repro steps

• Update an existing app, per directions on update.angular.io

Observed behavior

rxjs-compat was not added to package.json automatically

Desired behavior

Per the docs, rxjs-compat should have been installed.

Mention any other details that might be useful (optional)

[ivancas84]

same issue.

This package allowed me to keep working:

npm install rxjs-compat@6.0.0-tactical-rc.1

[yogeshpatil143]

npm i rxjs-compat

Add these on o your root folder