# Use of undefined constant CURLOPT\_SSL\_VERIFYPEER

**URL:** <https://forum.mautic.org/t/use-of-undefined-constant-curlopt-ssl-verifypeer/1823>\
**Category:** Product Support\
**Created:** [May 12, 2015, 5:13pm UTC](https://forum.mautic.org/t/use-of-undefined-constant-curlopt-ssl-verifypeer/1823 "2015-05-12T17:13:23Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Chris](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@Chris](https://forum.mautic.org/u/Chris)\
**Post date:** [May 12, 2015, 5:13pm UTC](https://forum.mautic.org/t/use-of-undefined-constant-curlopt-ssl-verifypeer/1823/1 "2015-05-12T17:13:23Z")

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I have installed Mautic on Amazon EC2 and I get this message:  
  
  
  
Notice: Use of undefined constant CURLOPT\_SSL\_VERIFYPEER - assumed ‘CURLOPT\_SSL\_VERIFYPEER’ in /var/www/html/…/app/bundles/CoreBundle/Helper/UpdateHelper.php on line 39  
  
  
  
 ![mautic.png](http://www.gutie.cl/media/2015/05/mautic.png)  
  
  
  
Thanks.

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**Author:** ![Chris](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@Chris](https://forum.mautic.org/u/Chris)\
**Post date:** [May 12, 2015, 5:13pm UTC](https://forum.mautic.org/t/use-of-undefined-constant-curlopt-ssl-verifypeer/1823/2 "2015-05-12T17:13:23Z")

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I have installed Mautic on Amazon EC2 and I get this message:

Notice: Use of undefined constant CURLOPT\_SSL\_VERIFYPEER - assumed ‘CURLOPT\_SSL\_VERIFYPEER’ in /var/www/html/…/app/bundles/CoreBundle/Helper/UpdateHelper.php on line 39

![](http://www.gutie.cl/media/2015/05/mautic.png)

Thanks.

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**Author:** ![gmillard](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/gmillard/32/5_2.png) [@gmillard](https://forum.mautic.org/u/gmillard)\
**Post date:** [May 13, 2015, 5:19pm UTC](https://forum.mautic.org/t/use-of-undefined-constant-curlopt-ssl-verifypeer/1823/3 "2015-05-13T17:19:20Z")

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It would seem that maybe curl isn’t installed on your ec2 instance? I’m not super familiar with Amazon EC2 but if you have access, ensure libcurl is installed.

Thanks,  
Alan

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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:** [February 2, 2020, 10:59pm UTC](https://forum.mautic.org/t/use-of-undefined-constant-curlopt-ssl-verifypeer/1823/4 "2020-02-02T22:59:59Z")

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Closed on February 2, 2020, 10:59pm UTC