what is contentbounds error

On Xcode simulateur. My app freeze with this message

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15/06/12 22:03:31,888 UIKitApplication:com.afk-cs.insight[0xad17]: Lua Runtime Error: lua_pcall failed with status: 2, error message is: ?:0: attempt to index field ‘contentBounds’ (a nil value)
[/bash]

I have two web view native opened.

It may happen when I quit the screen.
Although, i remove the objects.

Any idea ?

Frédéric [import]uid: 5578 topic_id: 27545 reply_id: 327545[/import]

Looks like you are attempting to retrieve a objects contentBounds during a Runtime event for a removed object?

[import]uid: 84637 topic_id: 27545 reply_id: 112181[/import]