# Foreign Keys Problem

**URL:** https://forum.shopware.com/t/foreign-keys-problem/89995
**Category:** Shopware 6 (German)
**Created:** [27. August 2021 um 11:12 UTC](https://forum.shopware.com/t/foreign-keys-problem/89995 "2021-08-27T11:12:25Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![premium-dog](https://avatars.discourse-cdn.com/v4/letter/p/779978/32.png) [@premium-dog](https://forum.shopware.com/u/premium-dog)
#### Post date: [27. August 2021 um 11:12 UTC](https://forum.shopware.com/t/foreign-keys-problem/89995/1 "2021-08-27T11:12:25Z")

</div>

Ich möchte ein Plugin installieren und bekommen diesen Fehler:

Das Plugin konnte aufgrund der Fehlermeldung „An exception occurred while executing ’ ALTER TABLE `dreisc_seo_redirect_import_export_log` ADD CONSTRAINT `json.dreisc_seo_redirect_import_export_log.row_value` CHECK (JSON\_VALID(`row_value`)), ADD CONSTRAINT `json.dreisc_seo_redirect_import_export_log.errors` CHECK (JSON\_VALID(`errors`)), ADD KEY `fk.dreisc_seo_redirect_import_export_log.dreisc_seo_redirect_id` (`dreisc_seo_redirect_id`), ADD CONSTRAINT `fk.dreisc_seo_redirect_import_export_log.dreisc_seo_redirect_id` FOREIGN KEY (`dreisc_seo_redirect_id`) REFERENCES `dreisc_seo_redirect` (`id`) ON DELETE CASCADE ON UPDATE CASCADE; ': SQLSTATE[HY000]: General error: 1005 Can’t create table `c1_test`.`dreisc_seo_redirect_import_export_log` (errno: 150 „Foreign key constraint is incorrectly formed“)“ nicht installiert werden