# Error installing mautic!!!

**URL:** <https://forum.mautic.org/t/error-installing-mautic/9310>\
**Category:** Product Support\
**Created:** [August 27, 2017, 5:58pm UTC](https://forum.mautic.org/t/error-installing-mautic/9310 "2017-08-27T17:58:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dante](https://avatars.discourse-cdn.com/v4/letter/d/f05b48/32.png) [@dante](https://forum.mautic.org/u/dante)\
**Post date:** [August 27, 2017, 5:58pm UTC](https://forum.mautic.org/t/error-installing-mautic/9310/1 "2017-08-27T17:58:48Z")

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I am at the installer page, step 1 and getting the following error when I click “Next Step”  
  
  
  
_An error occurred while attempting to install the data: Duplicate definition of column ‘id’ on entity ‘MauticCoreBundleEntityMessageQueue’ in a field or discriminator column mapping._  
  
  
  
Help plss… How to solve this, just spent 3 hrs on all this ![:/]( ":/")  
  
  
  
I installed mautic on linode all manually, following this guide [https://autoize.com/mautic-installation-guide-centos/](https://autoize.com/mautic-installation-guide-centos/)  
  
  
  
Thankss

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<div class="post-metadata">

**Author:** ![dante](https://avatars.discourse-cdn.com/v4/letter/d/f05b48/32.png) [@dante](https://forum.mautic.org/u/dante)\
**Post date:** [August 27, 2017, 5:58pm UTC](https://forum.mautic.org/t/error-installing-mautic/9310/2 "2017-08-27T17:58:48Z")

</div>

I am at the installer page, step 1 and getting the following error when I click “Next Step”

An error occurred while attempting to install the data: Duplicate definition of column ‘id’ on entity ‘MauticCoreBundleEntityMessageQueue’ in a field or discriminator column mapping.

Help plss… How to solve this, just spent 3 hrs on all this 😕

I installed mautic on linode all manually, following this guide [https://autoize.com/mautic-installation-guide-centos/](https://autoize.com/mautic-installation-guide-centos/)

Thankss