I am currently learning angular with angular 19. when i tried to run my test with ng test i got the following error : Error: src/app/app.component.spec.ts:26:5 - error TS2304: Cannot find name 'expect'. 26 expect(compiled.querySelector('h1')?.textContent).toContain('Hello, SlotBookingPortal'); ~~~~~~ for all the component but in my package.json i do have all the dependencies : "devDependencies": { "@angular-devkit/build-angular": "^19.1.7", "@angular/cli": "^19.1.7", "@angular/compiler-cli": "^19.1.6", "@types/jasmine": "~5.1.0", "@types/jest": "^29.5.14", "@types/mocha": "^10.0.10", "jasmine-core": "~5.1.0", "karma": "~6.4.0", "karma-chrome-launcher": "~3.2.0", "karma-coverage": "~2.2.0", "karma-jasmine": "~5.1.0", "karma-jasmine-html-reporter": "~2.1.0", "typescript": "~5.5.2" } Continue reading...