Before you can begin creating translation projects, you will to need enable multilingual support in the Drupal UI. If you have already done this, skip to the next section.
To enable Multilingual Support, first open the Structure area from the Drupal toolbar. Next, select Content Types.
Next, click on edit for each Content Type you wish to translate.
Select Publishing Options in the left-side navigation. Under the Multilingual Support section, select the Enable, with translation radio button and click Save content type.