Ionic 4 - ionic generate page returns error after file generation

After generating a page: ionic generate page pageName . i get an error as if angular cannot see the module of the generated page.

Steps to Reproduce:
After running this ionic command everything runs normally, files and folders were created, page was imported to angular routing module, but the error occurs as if angular cannot see the module of the page.

[ng] ERROR in ./src/app/pages/introduction/introduction.module.ts
[ng] Module build failed (from ./node_modules/@ngtools/webpack/src/index.js):
[ng] Error: F:\Projects\My Pets\Mobile\myPets\src\app\pages\introduction\introduction.module.ts is missing from the TypeScript compilation. Please make sure it is in your tsconfig via the 'files' or 'include' property.

My ionic info :


   ionic (Ionic CLI)             : 4.12.0
   Ionic Framework               : @ionic/angular 4.4.0
   @angular-devkit/build-angular : 0.13.9
   @angular-devkit/schematics    : 7.3.9
   @angular/cli                  : 7.3.9
   @ionic/angular-toolkit        : 1.5.1


   cordova (Cordova CLI) : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms     : android 8.0.0
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.0.1, (and 4 other plugins)


   NodeJS : v10.15.3
   npm    : 6.4.1
   OS     : Windows 10