iphone - error to add buttons inside scrollView -

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i have problem app (iphone), have created 2 vc (centerviewcontroller , buttonsviewcontroller). in .xib of centerviewcontroller have uiscrollview. scrollview show contents of buttonsviewcontroller. until here it's ok. problem appears when click button scrollview show, error pointing main file.

this link shows error:

http://www.mediafire.com/view/6elkxbzmn9ctzze/captura_de_pantalla_2013-09-24_a_la(s)_18.41.43.png

can me please?¿

thanks much.

probably connected ibaction / target selector not existing in implementation file. check connections , implement actions correctly. if did set in code, note need write : every argument in method, eg. @selector(didtouchbutton:).


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