When I try to build a Dockside Mill, I get Error! Cannot reach server. Please check your internet connection and try again.
I'm able to build a Magic Playhouse or an Abandoned Building without a problem. I've closed and re-opened the game multiple times. I've tried on my home wireless and on Verizon 4G LTE and the same thing happens on both.
I'm using a Google Pixel running Android 7.1.2.