simulator differs from device

Getting Started Newbie Questions
#1

Everything with the storyboard and scenes are running fine with no errors in the simulator, but on the iOS device I’m getting a runtime error.  

Jan 23 12:47:11 iPhone APP[9276] <Warning>: Runtime error

    ?:0: attempt to index upvalue ‘?’ (a nil value)

    stack traceback:

        [C]: ?

        ?: in function <?:320>

        ?: in function ‘dispatchEvent’

        ?: in function ‘gotoScene’

        ?: in function ‘_onPress’

        ?: in function ‘_setSelected’

        ?: in function <?:232>

        ?: in function <?:218>

Are there any tools that I could use to try and track down the offending nil?  

I’ll start systematically removing everything from the scene until it works…

#2

this is the bit of code that is causing the problem.

&nbsp;local escape\_btn = widget.newButton &nbsp; &nbsp; &nbsp; { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;id = 1, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;left = 0, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;top = 0, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;defaultFile="assets/escapeX.png", &nbsp; &nbsp; &nbsp; &nbsp; onEvent = escapeListener &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp;escape\_btn.anchorX, escape\_btn.anchorY = 0, 0 &nbsp; &nbsp; &nbsp; &nbsp;escape\_btn.x = 460 &nbsp; &nbsp; &nbsp; &nbsp;escape\_btn.y = 186 &nbsp;

when it’s in the scene, simulator works well, device crashes.  Taken out, everybody is happy.

#3

Are you sure the filenames are exactly the same case (lower/uppercase) letters? The filenames have to be identical on devices, the simulator doesn’t mind if they are different however.

#4

I double checked the case, all was the same.  

To confuse myself further, I saved the PNG files as JPGs and now it’s happy again.  

Why it didn’t like these particular png files and not all the others ones I’m still using, who knows!  

#5

Glad to hear you got it working :slight_smile:

#6

this is the bit of code that is causing the problem.

&nbsp;local escape\_btn = widget.newButton &nbsp; &nbsp; &nbsp; { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;id = 1, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;left = 0, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;top = 0, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;defaultFile="assets/escapeX.png", &nbsp; &nbsp; &nbsp; &nbsp; onEvent = escapeListener &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp;escape\_btn.anchorX, escape\_btn.anchorY = 0, 0 &nbsp; &nbsp; &nbsp; &nbsp;escape\_btn.x = 460 &nbsp; &nbsp; &nbsp; &nbsp;escape\_btn.y = 186 &nbsp;

when it’s in the scene, simulator works well, device crashes.  Taken out, everybody is happy.

#7

Are you sure the filenames are exactly the same case (lower/uppercase) letters? The filenames have to be identical on devices, the simulator doesn’t mind if they are different however.

#8

I double checked the case, all was the same.  

To confuse myself further, I saved the PNG files as JPGs and now it’s happy again.  

Why it didn’t like these particular png files and not all the others ones I’m still using, who knows!  

#9

Glad to hear you got it working :slight_smile: