Error after Running ng test command

[garydev10]

@tienbku Can I fix the error?
I will make the project create Services and Components successfully after ng test.

I got the below error after running ng test command

✔ Browser application bundle generation complete.
Error: src/app/app.component.spec.ts:20:16 - error TS2339: Property 'title' does not exist on type 'AppComponent'.
20     expect(app.title).toEqual('angular-16-jwt-auth');
                  ~~~~~
11 06 2023 14:38:40.310:WARN [karma]: No captured browser, open http://localhost:9876/
11 06 2023 14:38:40.346:INFO [karma-server]: Karma v6.4.2 server started at http://localhost:9876/
11 06 2023 14:38:40.347:INFO [launcher]: Launching browsers Chrome with concurrency unlimited
11 06 2023 14:38:40.354:INFO [launcher]: Starting browser Chrome
11 06 2023 14:38:41.133:INFO [Chrome 114.0.0.0 (Windows 10)]: Connected on socket FLEaxuA6E6Kr_7HNAAAB with id 1293018
11 06 2023 14:38:41.229:WARN [web-server]: 404: /_karma_webpack_/main.js
Chrome 114.0.0.0 (Windows 10): Executed 0 of 0 SUCCESS (0.003 secs / 0 secs)
TOTAL: 0 SUCCESS