Lua/Corona Attempt to Index a Boolean Value - lua

Question

It looks like I am having problems with transitioning from my level select page to my first level. I think it might be that I am missing something in my level 1, but I don't know exactly.
levelSelect.lua
module(..., package.seeall)
local director = require ("director")
local physics = require("physics")
physics.start()
local widget = require( "widget" )
-- Function to handle button events
local function handleButtonEventLevel1( event )
local phase = event.phase
if "ended" == phase then
director:changeScene("lvl1")
end
end
--local function goLevel1()
--director:changeScene("lvl1")
--return true
--end
--widget.newButton:addEventListener("tap", goLevel1)
local function handleButtonEventToPage( event )
local phase = event.phase
if "ended" == phase then
director:changeScene("page")
end
end
-- Main function - MUST return a display.newGroup()
function new()
local localGroup = display.newGroup()
local background = display.newImage("bigtestsky.png")
background.x=150
background.y=250
local myButton = widget.newButton
{
left = 25,
top = 25,
width = 100,
height = 50,
defaultFile = "default.png",
overFile = "over.png",
label = "1",
font = "LS",
fontSize = 20,
labelColor = { default = {0,0,50}, over = {0,0,255} },
onEvent = handleButtonEventLevel1,
}
local myButton = widget.newButton
{
left = 25,
top = 415,
width = 100,
height = 50,
defaultFile = "default.png",
overFile = "over.png",
label = "BACK",
font = "LS",
fontSize = 20,
labelColor = { default = {0,0,50}, over = {0,0,255} },
onEvent = handleButtonEventToPage,
}
return localGroup
end
lvl1.lua
local physics = require("physics")
physics.start()
local widget = require( "widget" )
(This is what I mean about missing something in the first level. Could someone please help?)
stack traceback:
[C]: ?
.../myName/Desktop/Bubbles! App/director.lua:116: in function 'loadScene'
.../myName/Desktop/Bubbles! App/director.lua:394: in function 'changeScene'
...myName/Desktop/Bubbles! App/levelSelect.lua:14: in function '_onEvent'
?: in function '?'
?: in function <?:405>
?: in function <?:218>

Answer 1

These are due to some issues with your class: lvl1.lua.
If such error occurs, open director.lua analyse the error return line. This will help you to find what the real problem is.
Here, you must write more lines in your lvl1.lua as below:
module(...,package.seeall) -- If this line is not written, then the package will not be loaded.
function new() -- Module 'lvl1' must have a new() function
local localGroup = display.newGroup() -- The scene should create a display group
local physics = require("physics")
physics.start()
local widget = require( "widget" )
print("Inside lvl1...")
return localGroup; -- And the scene should return the previously created display group.
end
Keep Coding.............. :)