I'm following this tutorial right now: https://developer.android.com/training/basics/firstapp/building-ui
I've done all the steps it lists, yet my screen looks like this.
On their tutorial it looks like this.
I can't figure out how to get the "Hello World!" to show up. I've followed their tutorial word for word, even restarted the whole thing to see if I messed anything up. Am I missing a simple tickbox or something?