Fix bug in dialog

src/app/app.module.ts

@@ -94,7 +94,7 @@ import { NbDialogModule } from '@nebular/theme';
     NbToastrModule.forRoot(),
     NbDialogModule.forRoot(),
   ],
-
+  entryComponents: [DatasetsDialogComponent],
   providers: [
     AppConfiguration,
     ParseXmlService,

src/app/repository/repository.component.html

@@ -23,7 +23,7 @@
   </div>
   <div class="form-group">
     <label>url</label>
-    <input  type="text" class="form-control" formControlName="repourl">
+    <input  type="text" class="form-control" formControlName="repourl" required>
   </div>
   <div class="form-group">
     <label>Version</label>