vratk0529

I have error:

Code is:

local component = require("component")
local gpu = component.gpu
gpu.setResolution(80,25)
local gui = require("gui")
local event = require("event")

gui.checkVersion(2,5)

local prgName = "security"
local version = "v1.0"

-- Begin: Callbacks
local function fire(guiID, buttonID)
   -- Your code here
end

local function armoured-true(guiID, buttonID)
   -- Your code here
end

local function armoured-false(guiID, buttonID)
   -- Your code here
end

local function power-on(guiID, buttonID)
   -- Your code here
end

local function power-off(guiID, buttonID)
   -- Your code here
end

local function height(guiID, textID, text)
   -- Your code here
end

local function rotation(guiID, textID, text)
   -- Your code here
end

local function exitButtonCallback(guiID, id)
   local result = gui.getYesNo("", "Do you really want to exit?", "")
   if result == true then
      gui.exit()
   end
   gui.displayGui(mainGui)
   refresh()
end
-- End: Callbacks

-- Begin: Menu definitions
mainGui = gui.newGui(1, 2, 79, 23, true)
Fire = gui.newButton(mainGui, 1, 1, "Fire!", fire)
Rotaion-label = gui.newLabel(mainGui, 1, 3, "Rotation", 0xc0c0c0, 0x0, 7)
Height-label = gui.newLabel(mainGui, 1, 5, "Height", 0xc0c0c0, 0x0, 7)
Armoured-true = gui.newButton(mainGui, 27, 1, "Set ready", armoured-true)
Armoured-false = gui.newButton(mainGui, 12, 1, "Not ready", armoured-false)
Power-on = gui.newButton(mainGui, 42, 1, "Power on", power-on)
Power-off = gui.newButton(mainGui, 56, 1, "Power off", power-off)
Height-value = gui.newText(mainGui, 10, 5, 2, "", height, 10, false)
Rotation-value = gui.newText(mainGui, 10, 3, 2, "", rotation, 10, false)
exitButton = gui.newButton(mainGui, 73, 23, "exit", exitButtonCallback)
-- End: Menu definitions

gui.clearScreen()
gui.setTop("Energy turret operation software")
gui.setBottom("Made with Visual Gui v0.1a and Gui library v2.5")

-- Main loop
while true do
   gui.runGui(mainGui)
end