I have a Magento 2 store that I just configured memcached on. Everything seemed to be working well and using the guide on the magento site I was able to verify it was working via telnet.

However, when I tried to access the Web Setup Wizard section from the Magento back end I received this error

Fatal error: Uncaught Exception: Warning: SessionHandler:1(): open(, O_RDWR) failed: No such file or directory (2) in /home/vanscosu/public_html/vendor/magento/framework/Session/SaveHandler/Native.php on line 22 in /home/vanscosu/public_html/vendor/magento/framework/App/ErrorHandler.php:61 Stack trace: #0 [internal function]: Magento\Framework\App\ErrorHandler->handler(2, 'SessionHandler:...', '/home/vanscosu/...', 22, Array) #1 /home/vanscosu/public_html/vendor/magento/framework/Session/SaveHandler/Native.php(22): SessionHandler->read('19qiu342pfd61u9...') #2 /home/vanscosu/public_html/vendor/magento/framework/Session/SaveHandler.php(93): Magento\Framework\Session\SaveHandler\Native->read('19qiu342pfd61u9...') #3 [internal function]: Magento\Framework\Session\SaveHandler->read('19qiu342pfd61u9...') #4 /home/vanscosu/public_html/vendor/magento/framework/Session/SessionManager.php(189): session_start() #5 /home/vanscosu/public_html/var/generation/Magento/Backend/Model/Auth in /home/vanscosu/public_html/vendor/magento/framework/App/ErrorHandler.php on line 61

That is the only thing I've found that doesn't work, but I obviously need it to manage various plugins and extensions. I've disabled memcached and returned session storage to the file system for now, but I would like to solve this.

Magento 2.1.5 PHP 7.0.19

1 Answer 1


This issue cause by Web setup wizard not load config from env.php

You can fix this by this ways:

Change php setting on php.ini

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