Property 'alertService' and 'options' does not exist on type 'AppComponent'

I'm implementing alert services in my applications however I get the error Property 'alertService' does not exist on type 'AppComponent' and Property 'options' does not exist on type 'AppComponent'

app.component.html:

<div class="form-group">
<button [disabled]="frmSignup.invalid" type="submit" class="btn btn-primary btn-block font-weight-bold"
(click)="alertService.success('Success!!', options)">Submit</button>
</div>


app.component.ts:

export class AppComponent {
public frmSignup: FormGroup;
public message = "Congrats you have successfully created your account";

constructor(private fb: FormBuilder) {
this.frmSignup = this.createSignupForm();
}

createSignupForm(): FormGroup {
return this.fb.group(
{
........
}
);
}

submit() {
// do signup or something
console.log(this.frmSignup.value);
alert(this.message);
}

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