# Upgrade 13 Issue

**URL:** <https://community.bloomreach.com/t/upgrade-13-issue/1649>\
**Category:** Experience Manager (PaaS/OnPrem)\
**Created:** [December 26, 2019, 4:10pm UTC](https://community.bloomreach.com/t/upgrade-13-issue/1649 "2019-12-26T16:10:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pbhagwat](https://avatars.discourse-cdn.com/v4/letter/p/c5a1d2/32.png) [@pbhagwat](https://community.bloomreach.com/u/pbhagwat)\
**Post date:** [December 26, 2019, 4:10pm UTC](https://community.bloomreach.com/t/upgrade-13-issue/1649/1 "2019-12-26T16:10:15Z")

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Hello Team,

We are working on hippo upgrade from 12.6.7 to 13.0.0. I am following the steps which are mentioned on site.

I have completed till following step:

[https://documentation.bloomreach.com/13/library/upgrade-12-to-13/steps/miscellaneous-upgrade-steps.html](https://documentation.bloomreach.com/13/library/upgrade-12-to-13/steps/miscellaneous-upgrade-steps.html)

But I am getting following exception. Build is successful but when I run the project, cms and console applications are not working and seeing the exception on cmd:

javax.jcr.RepositoryException: unchecked exception: java.lang.IllegalStateException: Module core/hippo-cms/hippo-addon-channel-manager/hippo-addon-channel-manager-content-service already exists while merging projects. Merging of modules is not supported.  
[INFO] [talledLocalContainer] at org.hippoecm.repository.HippoRepositoryFactory.getHippoRepository(HippoRepositoryFactory.java:161) ~[hippo-repository-connector-13.0.0.jar:13.0.0]

Can you give some pointers what could be wrong or missed?

Thanks in advance!

Regards,  
Priyanka

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**Author:** ![jeroen.hoffman](https://yyz1.discourse-cdn.com/flex027/user_avatar/community.bloomreach.com/jeroen.hoffman/32/43_2.png) [@jeroen.hoffman](https://community.bloomreach.com/u/jeroen.hoffman)\
**Post date:** [January 2, 2020, 9:50am UTC](https://community.bloomreach.com/t/upgrade-13-issue/1649/2 "2020-01-02T09:50:47Z")

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Hi,  
Since yaml module ‘hippo-addon-channel-manager-content-service’ has been refactored out in 13, I suspect you have a 12-version of hippo-addon-channel-manager-content-service.jar still somewhere in your war(s), probably postfixed -5.6.7.

HTH  
Jeroen