attempt to index global 'sceneManager' (a nil value) problem

loves_oi

I'm taking this error:

sources/screens/optionScreen.lua:193: attempt to index global 'sceneManager' (a nil value) stack traceback: sources/screens/optionScreen.lua:193: in function <sources/screens/optionScreen.lua:184>

this the line which causes error:

sceneManager:changeScene("results", 1, SceneManager.flipWithFade, easing.outBack,mydata)

I thought that code dependency may cause this error. But it is seen no problem in dependency , i think. I added the photo of dependencies.
i checked the sceneManager.lua. It exists in my project in sources->classes->sceneManager.lua
What may cause the error ? Any idea?
Thanks in advance.

talis

Do you have a scene defined like "results" in your scenecontroller.lua (Scenemaneger).
(Also corresponding lua file to "results" scene)

loves_oi

yes , defined result scene, here: (in main.lua)

sceneManager = SceneManager.new({ -- ["logoScreen"] = logoScreen, -- ["menuScreen"] = menuScreen, -- ["gameScreen"] = gameScreen, -- ["levelEndScreen"] = levelEndScreen, -- ["nextLevelScreen"] = nextLevelScreen, ["optionScreen"] = optionScreen, ["results"] = results, ["switch"] = switch, ["sld"] = sld })   local scenes = {"optionScreen" , "results" , "switch" , "sld" }

it can change to optionScreen page. But it cannot change from optionScreen page to results page

talis

do you have results.lua file in your project and inside it did you define results class? If yes can you please post here for further investigation:D

loves_oi

i found the reason of the error. I was unintentionally creating the instance of sceneManager class two times at main.lua. Namely:

sceneManager = SceneManager.new({   ["scene1"] = scene1 })   local scenes = {"scene1" }   .........   sceneManager = SceneManager.new({ ["optionScreen"] = optionScreen, ["results"] = results, ["switch"] = switch, ["sld"] = sld })   local scenes = {"optionScreen" , "results" , "switch" , "sld" }

When i delete the first one , it works perfectly.

But now i have encountered a new problem. I'm trying to integrate keyboard code(i did a login page using this) with the sceneManager code.

If i explain it more clearly , i have two different projects; one for login page and the other one for checkbox page. It works perfectly.

Now i'm trying to integrate them. After login page , the user is redirected to the checkbox page. But after integrating them , the size of checkboxes page and the other pages which follows checkbox page increased. I added the photos which shows run process after integrating both code.

Actually , before integrating them , checkboxes page and the pages which follows it looked smaller . After integrating with keyboard , it looks so big and the screen is not enough.

How can i make it smaller? Why does the size of them increase?

Here is my main:

local keyboard = KeyBoard.new("en_GB") keyboard:Create()   local label1 = TextField.new(nil,"Username : ") label1:setPosition(40, 45) label1:setTextColor(0xFF1300) stage:addChild(label1)   local label2 = TextField.new(nil,"Password") label2:setPosition(40, 100) label2:setTextColor(0xFF1300) stage:addChild(label2)   local inputbox = InputBox.new(150,20,150,40) inputbox:setText("") inputbox:SetKeyBoard(keyboard) inputbox:setBoxColors(0xefefef,0xff2222,0,1) inputbox:setActiveBoxColors(0xff5555,0xff2222,0,1) stage:addChild(inputbox)   local inputbox2 = InputBox.new(150,80,150,40) inputbox2:setText("") inputbox2:SetKeyBoard(keyboard) inputbox2:setBoxColors(0xefefef,0xff2222,0,1) inputbox2:setActiveBoxColors(0xff5555,0xff2222,0,1) stage:addChild(inputbox2)   stage:addChild(keyboard)   local a = TextField.new(nil,"Loading")   local upp = Bitmap.new(Texture.new("button.png")) local down = Bitmap.new(Texture.new("application lifecycle.png"))   -- create the button local button = Button.new(upp, down) button:setPosition(200, 120) stage:addChild(button)   nameTaken = "" local click = 0   button:addEventListener("click", function() if inputbox:getText() == "test" then inputbox:setText("done") else nameTaken = inputbox:getText() passwordTaken = inputbox2:getText() print (nameTaken) print (passwordTaken)   print (nameTaken .. "---")   local loader = UrlLoader.new("<a href="http://localhost/checklogin.php?myusername=&quot" rel="nofollow">http://localhost/checklogin.php?myusername=&quot</a>; .. nameTaken .. "&mypassword=" .. passwordTaken)   local function onComplete(event)   local myString=event.data -- We got the string here. print ("myString = " .. myString) local length = string.len(myString) local i = 1   local echoString = "" while (i < length+1) do   echoString = echoString .. string.sub(myString,i,i) i = i+1; end   a:setText(echoString) a:setPosition(10, 185) a:setTextColor(0x007B25) stage:addChild(a)   print (echoString)   loader:removeEventListener(Event.COMPLETE, onComplete)   controlName = string.sub(echoString,1,7)   if(controlName == 'Welcome') then ------------------------ sceneManager = SceneManager.new({ ["optionScreen"] = optionScreen, ["results"] = results, ["switch"] = switch, ["sld"] = sld })   local scenes = {"optionScreen" , "results" , "switch" , "sld" }   sceneManager:addEventListener("transitionBegin", function() print("manager - transition begin") end) sceneManager:addEventListener("transitionEnd", function() print("manager - transition end") end)   --add manager to stage   stage:addChild(sceneManager)   transitions = { SceneManager.moveFromLeft, SceneManager.moveFromRight, SceneManager.moveFromBottom, SceneManager.moveFromTop, SceneManager.moveFromLeftWithFade, SceneManager.moveFromRightWithFade, SceneManager.moveFromBottomWithFade, SceneManager.moveFromTopWithFade, SceneManager.overFromLeft, SceneManager.overFromRight, SceneManager.overFromBottom, SceneManager.overFromTop, SceneManager.overFromLeftWithFade, SceneManager.overFromRightWithFade, SceneManager.overFromBottomWithFade, SceneManager.overFromTopWithFade, SceneManager.fade, SceneManager.crossFade, SceneManager.flip, SceneManager.flipWithFade, SceneManager.flipWithShade, }     --start start scene sceneManager:changeScene("optionScreen", 1, SceneManager.flipWithFade, easing.outBack)     end end   local function onError() print("error") end   local function onProgress(event) print("progress: " .. event.bytesLoaded .. " of " .. event.bytesTotal) end loader:addEventListener(Event.COMPLETE, onComplete) loader:addEventListener(Event.ERROR, onError) loader:addEventListener(Event.PROGRESS, onProgress) end   end) --end of function which exist in button:addEventListener

loves_oi

Everything in every page is still bigger than normal size. I can't find why..
Here is another example of the problem. (I can't see any difference between their codes:S ) How to to fix it?

Any help will be appreciated..