What is a '?' value ?

Getting Started Newbie Questions
#1

Hello,

My app gets a mysterious error message with console and XCode simulator:

  
22/05/12 17:34:23,501 UIKitApplication:myapp[0x699b]: Lua Runtime Error: lua\_pcall failed with status: 2, error message is: ?:0: attempt to index upvalue '?' (a nil value)

I use storyboard api.

How could I identify the problem. I have commented almost all my code excepted the storyboard command and i still get this error.

If someone can give me some ways to start my debug, it would be great !
[import]uid: 5578 topic_id: 26672 reply_id: 326672[/import]

#2

It mentions an upvalue issue - a quick search will give you more threads about this already in the forum that should help you isolate and fix the issue :slight_smile: [import]uid: 52491 topic_id: 26672 reply_id: 108297[/import]