We have Magento 2.1.1 installed, together with the "Porto" template and a second (german) language pack.
Language in the backend works fine.
Unfortunately, it works not with the language change in the store. On the home page, I can still change the language from english to german. Now my german main menu is visible. So far so good.
If I select something from the german menu it jumps directly to a 404 - why? Because the language from the store jumps back to english and the URL .../german-category/germanarticle,html doens't exist for english.
Thank you so much for any helpful information.
Solved! Go to Solution.
You need to install it with the official guide of magento with the command.
Please visit http://devdocs.magento.com/guides/v2.1/config-guide/cli/config-cli-subcommands-i18n.html#config-cli-... for more details