import matcheckbox

Client/src/app/app.module.ts

@@ -16,7 +16,8 @@ import { MatButtonModule,
          MatSelectModule,
          MatOptionModule,
          MatRadioModule,
-         MatAutocompleteModule} from '@angular/material';
+         MatAutocompleteModule,
+         MatCheckbox} from '@angular/material';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import 'hammerjs';
 
@@ -135,7 +136,8 @@ import { MissionarySupportService } from './services/missionary-support-service'
     MatSnackBarModule,
     MatDialogModule,
     MatAutocompleteModule,
-    MatRadioModule
+    MatRadioModule,
+    MatCheckbox
   ],
   providers: [LoginService,UserService,GoogleAnalyticsService,SermonService,TransactionService,EventService,EmailService,MissionarySupportService,WindowRefService],
   entryComponents: [AddSermonPopupComponent,