I'm using Magento 2.1.I just updated my composer and after that When I run setup:upgrade it's showing me error

PHP Fatal error: Class 'Zend_Captcha_Image' not found in vendor/magento/module-captcha/Model/DefaultModel.php on line 13

How can I resolve this issue?

any help will be appreciated.


  • Was that you trying to upgrade your Magento using composer? You may forgot to put your store in maintenance mode and backup data Jul 16, 2020 at 2:04
  • what is the solution for this?
    – AjayKr
    Jul 20, 2020 at 5:21


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