Magento 2.0.18 is the final 2.0.x release. After March 2018, Magento 2.0.x will no longer receive security patches, quality fixes, or documentation updates.
To maintain your site's performance, security, and PCI compliance, upgrade to the latest version of Magento.

During installation, Reflection Exception error


During the installation, a message similar to the following displays:

[ERROR] exception 'ReflectionException' with message 'Class Magento\Framework\StoreManagerInterface does not exist' 
in /<path>/lib/internal/Magento/Framework/Code/Reader/ClassReader.php


Clear all directories and files under Magento’s var subdirectory and install the Magento software again.

As the Magento file system owner or as a user with root privileges, enter the following commands:

cd <your Magento install directory>/var
rm -rf cache/* di/* generation/* page_cache/*