been getting this error
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 TypeError: object is not a function 
 at Object.findRoute (/opt/engine/dist/game/map.js:74:18)
 at Object.findExit (/opt/engine/dist/game/map.js:103:24)
 at Room.findExitTo (/opt/engine/dist/game/rooms.js:750:25)
 at RoomPosition.findPathTo (/opt/engine/dist/game/rooms.js:796:26)
 at Array.forEach (native)
 at RoomPosition.findClosest (/opt/engine/dist/game/rooms.js:861:24)
 at Room.getMyTrainTransfer (room:78:34)
 at Object.module.exports as trainroom:78 calls RoomPosition.findClosest() with an array of creeps 
 
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 I am also getting the same error a lot, it happens when moving to a target in a different room: 
 creep.pos.findPathTo(creepInAnotherRoom)
 It is very intermittent, sometimes couple of hours goes by without it and sometimes it fails every 3 minutes, never consecutively.
 
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 Is it possible to move to another room in a different way?