So I was playing the first base-building mission and doing really well on it, but then, while building the Party House, I ran out of food. Since the pub was under construction, though, there wasn't any way to load any more food into the building! So I appear to be completely stuck. I tried restarting the mission (with buildings intact) but I STILL can't load any food because the party house is still under construction.

Is there any way to cancel the building process so I can load some more meat into the pub? Or do I have to redo the entire level from scratch?

Eventually I just quit the mission entirely and restarted from scratch, and made DAMN SURE to have plenty of extra food stored before I started construction the second time. Still, it seems kind of strange. I just started on the first Delphi basebuilding mission, hopefully no more issues will arise.