ionic generate: Unknown option: '--change-detection'

[sebaferreras]

Description:

One of the examples in the Ionic Generate docs is ionic generate component login-form --change-detection=OnPush but executing that exact command returns an error:

ionic generate component login-form --change-detection=OnPush
=> Unknown option: '--change-detection'

The same happens when trying to use some other options:

ionic generate component login-form --view-encapsulation=None
=> Unknown option: '--view-encapsulation'

Steps to Reproduce:

In any Ionic Angular project execute the following command: ionic generate component login-form --change-detection=OnPush

Output:

ionic generate component login-form --change-detection=OnPush
=> Unknown option: '--change-detection'

My ionic info:

Ionic:

   Ionic CLI                     : 6.11.8
   Ionic Framework               : @ionic/angular 5.3.2
   @angular-devkit/build-angular : 0.1000.8
   @angular-devkit/schematics    : 10.0.8
   @angular/cli                  : 10.0.8
   @ionic/angular-toolkit        : 2.3.3

Cordova:

   Cordova CLI       : 9.0.0 ([email protected])
   Cordova Platforms : android 9.0.0, ios 5.1.1
   Cordova Plugins   : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 5.0.0, (and 23 other plugins)

Utility:

   cordova-res                          : 0.15.1
   native-run (update available: 1.0.0) : 0.2.6

System:

   Android SDK Tools : 26.1.1
   ios-deploy        : 1.9.4
   ios-sim           : 8.0.2
   NodeJS            : v10.16.2
   npm               : 6.9.0
   OS                : macOS Catalina
   Xcode             : Xcode 11.6 Build version 11E708