修改

lib/integral_store/integral_store_details_page.dart

@@ -325,7 +325,7 @@ class _IntegralStoreDetailsPage extends State {
                     ),
                   );
           },
-          itemCount: goods == null ? 1 : goods.viceImgPaths.length,
+          itemCount: (goods == null || goods.viceImgPaths == null) ? 1 : goods.viceImgPaths.length,
         ),
       ),
     );