papabeans: You need to copy the content folder into the output folder.
NotoriousPyro: Hm, my friend had that issue. Apparently he needed Newtonsoft|.|Json|.|dll in the folder, he didn't need it for normal Terraria. Try finding that and copying it in. (Sorry for putting the | symbol. It wouldn't let me post because the forum software thought it was a link apparently)
NotoriousPyro: Hm, my friend had that issue. Apparently he needed Newtonsoft|.|Json|.|dll in the folder, he didn't need it for normal Terraria. Try finding that and copying it in. (Sorry for putting the | symbol. It wouldn't let me post because the forum software thought it was a link apparently)

. Still need the server files though.