Upgrade magento from 2.2.3 to 2.3 using command line issues

[developer1607]

Hi,

I am upgrading the magento from 2.2.3 to 2.3 using command line in localserver as per this reference link

http://www.codextblog.com/magento-2/upgrade-magento-version-2-2-x-2-3-0/ .
php version for required for magento 2.3 is php 7.2 , and my localserver php version is:
PHP Version 7.2.27-1+ubuntu18.04.1+deb.sury.org+1

I have followed all the steps as per the above given reference link but in step 6 as I using the command -
php bin/magento setup:upgrade

Step 6: Clear cache and regenerate code.

php bin/magento setup:upgrade
After running this command it shows the errors.

PHP Fatal error: Uncaught Error: Call to undefined function Magento\Framework\Encryption\mcrypt_module_open() in /var/www/html/venoor/vendor/magento/framework/Encryption/Crypt.php:59
Stack trace:
#0 /var/www/html/venoor/vendor/magento/framework/Encryption/Encryptor.php(401): Magento\Framework\Encryption\Crypt->__construct('21048dae9013bbe...', 'MCRYPT_RIJNDAEL...', 'MCRYPT_MODE_CBC', 'gsLinqLEzEIfffO...')
#1 /var/www/html/venoor/vendor/magento/framework/Encryption/Encryptor.php(313): Magento\Framework\Encryption\Encryptor->getCrypt('21048dae9013bbe...', 2, 'gsLinqLEzEIfffO...')
#2 /var/www/html/venoor/vendor/magento/module-config/Model/Config/Backend/Encrypted.php(113): Magento\Framework\Encryption\Encryptor->decrypt('OiNuTLMClOcKG4U...')
#3 /var/www/html/venoor/generated/code/Magento/Config/Model/Config/Backend/Encrypted/Interceptor.php(37): Magento\Config\Model\Config\Backend\Encrypted->processValue('0:2:gsLinqLEzEI...')
#4 /var/www/html/venoor/vendor/magento/framework/App/Config/MetadataConfigTypeProcessor.php(123): Magent in /var/www/html/venoor/vendor/magento/framework/Encryption/Crypt.php on line 59

so could, you please help me to resolve these issue and upgrade the magento from 2.2.3 to 2.3

Thanks

[ppareek]

Could you please check if PHP Mcrypt module is loaded or not.

You can check using the below code to check if function exists or not. .

if(function_exists('mcrypt_encrypt')) {
echo "mcrypt is loaded!";
} else {
echo "mcrypt isn't loaded!";
}

If not, you need to install Mcrypt module.

[developer1607]

Yes, I have checked it using the phpinfo() and it shows the mcrypt is enabled. please check the screenshot link https://prnt.sc/qvffcs

[Sunil Patel]

Hello @developer1607 

Are you using same php version for cli and browser?

if not then set that php version

[ppareek]

Mcrypt is removed from PHP 7.2. It may possible that its not properly installed on correct Path OR you may have multiple PHP versions installed.

Can you please check below links:

https://support.magento.com/hc/en-us/articles/360034280132-The-PHP-mcrypt-extension-is-not-installed...

https://www.php.net/manual/en/intro.mcrypt.php

Hope this help !!

[developer1607]

Hi,
I am using the same php version for CLI and browser.

[Sunil Patel]

@developer1607 

check your php log may be that extension not loaded 

[developer1607]

@ppareekI have checked only one php version 7.2 is installed.

[developer1607]

@Sunil Patel  I have checked it the extension is already loaded shown enabled in using phpinfo() .

[Sunil Patel]

Hello @developer1607 

Try to one thing rename env.php and config.php so it will ask to install magento and on first step Magento will check all pre condition.

Hope it will help you.