# Virtual scroll

**URL:** <https://forum.ionicframework.com/t/virtual-scroll/105807>\
**Category:** ionic-v3\
**Created:** [September 18, 2017, 1:08pm UTC](https://forum.ionicframework.com/t/virtual-scroll/105807 "2017-09-18T13:08:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![francocor4](https://avatars.discourse-cdn.com/v4/letter/f/c0e974/32.png) [@francocor4](https://forum.ionicframework.com/u/francocor4)\
**Post date:** [September 18, 2017, 1:08pm UTC](https://forum.ionicframework.com/t/virtual-scroll/105807/1 "2017-09-18T13:08:07Z")

</div>

this is the error it throw:

```auto
Can't bind to 'virtualItem' since it isn't a known property of 'ion-item'.
1. If 'ion-item' is an Angular component and it has 'virtualItem' input, then verify that it is part of this module.
2. If 'ion-item' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("virtualScroll]="properties" approxItemHeight="50px"

```

It seems that it doenst recongnize ion item