[Error][Lua] = Expected but not really..

slot = 1
if turtle.getFuelLevel() < 1000 then
		turtle.select(16)
		turtle.refuel(64)
end
function antiObstruct()
if turtle.detectDown() then
  turtle.digDown()
end
  if turtle.detectUp() then
   turtle.digUp()
  end
   if turtle.detect then
	  turtle.dig()
   end
end
function refillMaterials()  
while turtle.getItemCount(slot) < 1 do
   slot = slot + 1
   turtle.select(slot)
  if slot == 16 then
  slot = slot - 15
   turtle.select(slot)
  end
end
end
function noMaterials()
term.clear()
term.setCursorPos(1,1)
print("Out of materials please bring me more :(/>/>/>/>")
	print("press any key to continue...")
	event1, param1 = os.pullEvent()
refillMaterials()
end
function placeBlock(times)
	for blocks = 1, times do
   turtle.placeDown()
   turtle.forward()
end
end
-- Build cylinder code
function corner()
	turtle.turnRight()
	turtle.forward()
	turtle.turnLeft()
placeBlock()
turtle.turnRight()
	turtle.forward()
	turtle.turnLeft()
turle.turnLeft()
placeBlock()
	turtle.turnRight()
	turtle.forward()
	turtle.turnLeft()
placeBlock()
turtle.turnRight()
turtle.forward()
end

function buildCylinderLayer()
placeBlock(6)
corner()
placeBlock(6)
corner()
placeBlock(6)
corner()
placeBlock(6)
corner()
end
function buildCylinder( cylinderHeight )
for cylheight = 1, cylinderHeight do
  buildCylinderLayer()
  turtle.up()
	end
end
-- Build cylinder code
-- Build wall code
function wallLayer()
  placeBlock(19)
  turtle.placeDown()
  wallCorner()
  placeBlock(19)
  turtle.forward()
  turtle.placeDown()
  wallCorner()
  turtle.up()
end
function wallCorner()
	turtle.turnRight()
	turtle.forward()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.turnRight()
end
function wallDirection( direction )
for wallDir = 1, direction do
  if direction == 1 then
   turtle.turnLeft()
   turtle.forward()
  else
   if direction == 2 then
	turtle.forward(9)
	turtle.turnRight()
	turtle.forward(4)
	turtle.turnLeft()
	turtle.forward()
   else
	if direction == 3 then
	 turtle.forward(5)
	 turtle.turnRight()
	 turtle.forward(14)
	else
	 if direction == 4 then
	  turtle.turnRight(2)
	  turtle.forward(4)
	  turtle.turnLeft()
	  turtle.forward(9)
	  turtle.turnRight()
	  turtle.forward()
	 else
	 end
	end
   end
  end
end
end

function buildWall( wallHeight )
	for wallH = 1, wallHeight do
   wallLayer()
	end
end
-- Build wall code
term.clear()
term.setCursorPos(1,1)
print("How tall should the Castle be?")
local height = tonumber(read())
turtle.select(1)
-- Start building!
buildCylinder(height)
wallDirection( math.random (1,4) )
buildWall()
-- Done Building