Cannot bake directional lightmaps using Unity Pro.

Console Message:

Directional Lightmaps require a Pro license.
UnityEditor.DockArea:OnGUI()

Using a paid Unity Pro license and I am still unable to bake lighting using Directional Lightmaps.

Directional lightmapping requires Unity pro for the Editor and target platform. So if you are targeting PC, Mac or web for example, Unity Pro is required, but if you are targeting iOS or Android you will also need Unity iOS or Android pro add on. If you are not targeting an add-on platform with directional lightmaps then simply select another platform to be active.

Open Help > About Unity...

In the lower right corner, you should see some small text that describes your “license type”. Do you see “pro” mentioned?

Are you able to select the “dark” editor theme?

If no to either or both, your pro license doesn’t seem to be activated. The help menu also has an option to “Manage License”, so you might try that. If that won’t work, contact official Unity support through the company website.