# Allgemein zu 5.1.4-RC (Im Backend update auf  5.1.4-RC trotz stable)

**URL:** https://forum.shopware.com/t/allgemein-zu-5-1-4-rc-im-backend-update-auf-5-1-4-rc-trotz-stable/35286
**Category:** Allgemein
**Created:** [14. März 2016 um 15:24 UTC](https://forum.shopware.com/t/allgemein-zu-5-1-4-rc-im-backend-update-auf-5-1-4-rc-trotz-stable/35286 "2016-03-14T15:24:04Z")
**Posts on this page:** 1
**Showing post:** 12

<div class="post-metadata">

### Author: ![sonic](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.shopware.com/sonic/32/25728_2.png) [@sonic](https://forum.shopware.com/u/sonic)
#### Post date: [17. März 2016 um 21:07 UTC](https://forum.shopware.com/t/allgemein-zu-5-1-4-rc-im-backend-update-auf-5-1-4-rc-trotz-stable/35286/12 "2016-03-17T21:07:31Z")

</div>

Tuts bei mir im Testshop nicht…

 ![](https://europe1.discourse-cdn.com/flex013/uploads/shopware/original/2X/4/44d9d21e4e54ee695048539354595f629deb948b.png)

```
Error
Received the following error message:
Could not apply migration: SQLSTATE[42000]: Syntax error or access violation: 1061 Duplicate key name 'mapping_id'

Please try to fix this error and restart the update.
Response
{"valid":false,"errorMsg":"Could not apply migration: SQLSTATE[42000]: Syntax error or access violation: 1061 Duplicate key name 'mapping_id'"}

```

&nbsp;

---

_[View the full topic](https://forum.shopware.com/t/allgemein-zu-5-1-4-rc-im-backend-update-auf-5-1-4-rc-trotz-stable/35286)._