Im following this tutorial on YT https://www.youtube.com/watch?v=ZiqrCRqyLzE. But freestyle line does not appears. Freestyle checkbox is ticked, add-ons are ticked (LoopTools, PieMenu Official). I tried it with new fresh blender project, but nothing. Im in Blender 1.78, Win 7 Ultimate x64.
Just editing and adding my file since I am doing the same tutorial and having the same problem:
Adding a camera to the scene worked! (I am adding this here since I cannot comment yet) Thanks a lot!