# Mautic 2.14.2 doesn't start installation because of symfony errors

**URL:** <https://forum.mautic.org/t/mautic-2-14-2-doesnt-start-installation-because-of-symfony-errors/10775>\
**Category:** Product Support\
**Created:** [November 12, 2018, 4:44pm UTC](https://forum.mautic.org/t/mautic-2-14-2-doesnt-start-installation-because-of-symfony-errors/10775 "2018-11-12T16:44:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bemi](https://avatars.discourse-cdn.com/v4/letter/b/71e660/32.png) [@bemi](https://forum.mautic.org/u/bemi)\
**Post date:** [November 12, 2018, 4:44pm UTC](https://forum.mautic.org/t/mautic-2-14-2-doesnt-start-installation-because-of-symfony-errors/10775/1 "2018-11-12T16:44:53Z")

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Hi there!  
I hope, someone can help me!  
I installed a new Mautic version 2.14.2 without any problems.  
However, after trying to import the database of an earlier version, the new installation was broken.  
I had the idea to “clean” everything. So I deleted Mautic’s installation folder and also deleted all tables inside the database, hoping that another new installation would work again.  
Well, unfortunately it doesn’t. I can’t even start the installation because of the follwing errors my PHP-Log tells me:

Symfony\Component\Debug\Exception\FatalErrorException: Error: Class ‘Symfony\Bundle\SecurityBundle\DependencyInjection\Security\Factory\FormLoginFactory’ not found - in file /my-URL/my-mautic\_2.14.2-folder/vendor/symfony/security-bundle/SecurityBundle.php - at line 46  
ERROR - Class ‘Symfony\Bundle\SecurityBundle\DependencyInjection\Security\Factory\FormLoginFactory’ not found - in file /my-URL/my-mautic\_2.14.2-folder/vendor/symfony/security-bundle/SecurityBundle.php - at line 46  
FATAL ERROR - Class ‘Symfony\Bundle\SecurityBundle\DependencyInjection\Security\Factory\FormLoginFactory’ not found my-mautic\_2.14.2-folder/vendor/symfony/security-bundle/SecurityBundle.php line 46

Can someone tell me, how I could convice Mautic to work again? 🙂

Thanks a lot!  
Bemi

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**Author:** ![silavapi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/silavapi/32/7424_2.png) [@silavapi](https://forum.mautic.org/u/silavapi)\
**Post date:** [January 25, 2021, 8:53pm UTC](https://forum.mautic.org/t/mautic-2-14-2-doesnt-start-installation-because-of-symfony-errors/10775/2 "2021-01-25T20:53:02Z")

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