Engine Error (How to fix?)

I keep getting this engine error in the game, sometimes it pops up when creating buildings, other times just random.

release-663 (x64)[M]
@stonehearth/components/ai/ai_component.lua:551: (5057 Caleb Umbro) has not yielded after 10 ai spins. Are they in a bad state? Last abort reason: follow_path mover aborted reason: could not compute full path in start.
stack traceback:
radiant/modules/common.lua:237: in function 'report_traceback’
radiant/modules/common.lua:456: in function 'verify’
stonehearth/components/ai/ai_component.lua:551: in function <stonehearth/components/ai/ai_component.lua:509>
[C]: in function 'xpcall’
radiant/modules/common.lua:257: in function 'xpcall’
stonehearth/components/ai/ai_component.lua:509: in function '_thread_main’
stonehearth/services/server/threads/thread.lua:249: in function <stonehearth/services/server/threads/thread.lua:246>
[C]: in function 'xpcall’
radiant/modules/common.lua:257: in function 'xpcall’
stonehearth/services/server/threads/thread.lua:246: in function 'f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

A post was merged into an existing topic: Ai spin error - reason: follow_path mover aborted