# Keycloak fails at start

**URL:** <https://forum.keycloak.org/t/keycloak-fails-at-start/6462>\
**Category:** Configuring the server\
**Created:** [December 17, 2020, 6:37pm UTC](https://forum.keycloak.org/t/keycloak-fails-at-start/6462 "2020-12-17T18:37:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![romain](https://avatars.discourse-cdn.com/v4/letter/r/c2a13f/32.png) [@romain](https://forum.keycloak.org/u/romain)\
**Post date:** [December 17, 2020, 6:37pm UTC](https://forum.keycloak.org/t/keycloak-fails-at-start/6462/1 "2020-12-17T18:37:33Z")

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Hello,

I am running into an issue that started this morning.  
I am not sure how to troubleshoot, here is the stack trace:

```
18:25:57,186 FATAL [org.keycloak.services] (ServerService Thread Pool -- 66) Error during startup: org.keycloak.models.ModelDuplicateException: javax.persistence.EntityExistsException: A different object with the same identifier value was already associated with the session : [org.keycloak.models.jpa.entities.RequiredActionProviderEntity#0b82f0a3-db73-4c7b-aeec-a054bc0a2a9f]
	at org.keycloak.keycloak-model-jpa@12.0.0//org.keycloak.connections.jpa.PersistenceExceptionConverter.convert(PersistenceExceptionConverter.java:59)
	at org.keycloak.keycloak-model-jpa@12.0.0//org.keycloak.connections.jpa.PersistenceExceptionConverter.invoke(PersistenceExceptionConverter.java:51)
	at javax.persistence.api@2.2.3//com.sun.proxy.$Proxy91.persist(Unknown Source)
	at org.keycloak.keycloak-model-jpa@12.0.0//org.keycloak.models.jpa.RealmAdapter.addRequiredActionProvider(RealmAdapter.java:1826)
	at org.keycloak.keycloak-model-infinispan@12.0.0//org.keycloak.models.cache.infinispan.RealmAdapter.addRequiredActionProvider(RealmAdapter.java:1359)
	at org.keycloak.keycloak-server-spi-private@12.0.0//org.keycloak.migration.migrators.MigrateTo12_0_0.lambda$migrate$4(MigrateTo12_0_0.java:52)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
```

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**Author:** ![susumutomita](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/susumutomita/32/1933_2.png) [@susumutomita](https://forum.keycloak.org/u/susumutomita)\
**Post date:** [December 18, 2020, 2:09am UTC](https://forum.keycloak.org/t/keycloak-fails-at-start/6462/2 "2020-12-18T02:09:51Z")

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Looks ,it is the same issue as [https://issues.redhat.com/browse/KEYCLOAK-16648](https://issues.redhat.com/browse/KEYCLOAK-16648).  
You can also check [https://github.com/keycloak/keycloak/pull/7685](https://github.com/keycloak/keycloak/pull/7685).  
Thanks

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**Author:** ![romain](https://avatars.discourse-cdn.com/v4/letter/r/c2a13f/32.png) [@romain](https://forum.keycloak.org/u/romain)\
**Post date:** [December 18, 2020, 7:48pm UTC](https://forum.keycloak.org/t/keycloak-fails-at-start/6462/3 "2020-12-18T19:48:21Z")

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rollback to 11.0.3 fixed the issue  
thanks