# Error after Update to Shopware 6.3.0

**URL:** <https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798>\
**Category:** Installation / Getting Started (EN)\
**Created:** [5. August 2020 um 17:48 UTC](https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798 "2020-08-05T17:48:14Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![oliverriske](https://avatars.discourse-cdn.com/v4/letter/o/ebca7d/32.png) [@oliverriske](https://forum.shopware.com/u/oliverriske)\
**Post date:** [5. August 2020 um 17:48 UTC](https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798/1 "2020-08-05T17:48:14Z")

</div>

After Update to 6.3.0 from 6.2.3 i get the error:

In ClassExistenceResource.php line 179:

Class “Shopware\Core\Framework\DataAbstractionLayer\EntityExtensionInterface” not found while loading “Nextag\Checkout\Content\OrderExtension”.  
&nbsp;

but the Class is used and refrenced correct. Cache has also been cleaned

What can i do?

---

<div class="post-metadata">

**Author:** ![shyim](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.shopware.com/shyim/32/7681_2.png) [@shyim](https://forum.shopware.com/u/shyim)\
**Post date:** [5. August 2020 um 17:50 UTC](https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798/2 "2020-08-05T17:50:37Z")

</div>

This class does not exists anymore. Its deprecated since 6.2

---

<div class="post-metadata">

**Author:** ![oliverriske](https://avatars.discourse-cdn.com/v4/letter/o/ebca7d/32.png) [@oliverriske](https://forum.shopware.com/u/oliverriske)\
**Post date:** [5. August 2020 um 18:08 UTC](https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798/3 "2020-08-05T18:08:57Z")

</div>

@Shyim‍ Schould i extend&nbsp;&nbsp;\Shopware\Core\Framework\DataAbstractionLayer\EntityExtension instead of implementing this old interface - or what can i do?

---

<div class="post-metadata">

**Author:** ![shyim](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.shopware.com/shyim/32/7681_2.png) [@shyim](https://forum.shopware.com/u/shyim)\
**Post date:** [5. August 2020 um 18:37 UTC](https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798/4 "2020-08-05T18:37:05Z")

</div>

yes extend from it

---

<div class="post-metadata">

**Author:** ![DeineShisha](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.shopware.com/deineshisha/32/13269_2.png) [@DeineShisha](https://forum.shopware.com/u/DeineShisha)\
**Post date:** [2. September 2020 um 14:33 UTC](https://forum.shopware.com/t/error-after-update-to-shopware-6-3-0/68798/5 "2020-09-02T14:33:14Z")

</div>

I have the same issue, what did you do exacly?