Fatal error: Cannot redeclare wpb_getImageBySize() (previously declared in plugins/js_composer/include/helpers/helpers.php

WPBakery Install Receives the Error: fatal error: Cannot redeclare wpb_getImageBySize() 

Fatal error: Cannot redeclare wpb_getImageBySize() (previously declared in /srv/www/vhosts/www.busybooks.com/wp-content/themes/busybooks/wpbakery/js_composer/composer/lib/helpers.php:15) in /srv/www/vhosts/www.website.com/wp-content/plugins/js_composer/include/helpers/helpers.phpon line 111

When installing the WPBakery plugin you receive the above error after trying to activate the plugin. 

The Fix

The issue is easily fixed by installing one of the default themes from WordPress. Activating it. Then returning to the plugins and activating the WPBakery Visual Composer.