How to Save a Product without getting error/alert Message

[sportame]

When I create my first product and try to save it I get the following error/alert message:

Can't create directory /home/abcdef/public_html/var/generation/Magento/Catalog/Model/Product/Attribute/Backend/Media/

How do I resolve this?

[Dmitry_Fedyuk · Accepted solution]

http://devdocs.magento.com/guides/v2.0/install-gde/prereq/file-system-perms.html