nothing happens when i add a UIBlock2D

[felaix]

I made a brandnew project, imported Nova (not the trial version) but nothing happens when i add a UIBlock2D. It's my first time using nova. I saw the tutorials, he just adds a uiblock2d at the beginning. Do i have to do something else before? (No idea why the gif is so slow. sorry for that). It's not only in the simulator, i can't see anything in the game view as well. What am i doing wrong?

[felaix]

Okay, fixxed. How? I just restarted unity lol