Fix

src/app/shared/event/attendee-modal/attendee-modal.page.ts

@@ -3,6 +3,7 @@ import { ModalController } from '@ionic/angular';
 import { ContactsService } from 'src/app/services/contacts.service';
 import { EventPerson } from 'src/app/models/eventperson.model';
 import { removeDuplicate } from 'src/plugin/removeDuplicate.js'
+import { ThemeService } from 'src/app/services/theme.service'
 
 @Component({
   selector: 'app-attendee-modal',
@@ -34,7 +35,8 @@ export class AttendeePage implements OnInit {
 
   constructor(
     private modalCtrl: ModalController, 
-    private contactsService: ContactsService ) { 
+    private contactsService: ContactsService,
+    public ThemeService: ThemeService ) { 
 
       this.LtaskParticipants  = removeDuplicate(this.taskParticipants);
       this.LtaskParticipantsCc = removeDuplicate(this.taskParticipantsCc);