ng generate component is not working anymore

**Description:**

```
>ng g c todo.service.ts
An unhandled exception occurred: Schematic "appShell" not found in collection "@ionic/angular-toolkit".
See "C:\Users\user\AppData\Local\Temp\ng-jnwgAJ\angular-errors.log" for further details.
```

**Steps to Reproduce:**

**Output:**

```
An unhandled exception occurred: Schematic "appShell" not found in collection "@ionic/angular-toolkit".
See "C:\Users\user\AppData\Local\Temp\ng-jnwgAJ\angular-errors.log" for further details.
```

**My `ionic info`:**

```
Ionic:

Ionic CLI : 6.20.3 (C:\Users\user\AppData\Roaming\npm\node_modules\@ionic\cli)
Ionic Framework : @ionic/angular 6.3.1
@angular-devkit/build-angular : 14.2.6
@angular-devkit/schematics : 14.2.6
@angular/cli : 14.2.6
@ionic/angular-toolkit : 7.0.0

Capacitor:

Capacitor CLI : 4.3.0
@capacitor/android : 4.3.0
@capacitor/core : 4.3.0
@capacitor/ios : not installed

Utility:

cordova-res : 0.15.4
native-run : 1.7.1

System:

NodeJS : v14.17.1 (C:\Program Files\nodejs\node.exe)
npm : 6.14.13
OS : Windows 10
```

**Other Information:**