"Run > Stop on Objective-C exception" in Xcode 4?

Maybe somebody knows wh开发者_运维百科ere is the "Run > Stop on Objective-C exception" menu in Xcode 4? I've used it sometimes in Xcode 3, but it disappeared in the new IDE.

In the left side column of xcode 4:

1. tap on the breakpoint tab (the 6th tab over)
2. tap on the + button in the bottom left of the window
3. tap 'add exception breakpoint'
4. tap 'done' on the popup

See the image It will help,

good luck, Naveen Shan

Someone else told me this, and I'm adding it here so I can favorite this question and have a useful reference to look back on.

Set the objc exception breakpoint action to po $eax and you'll usually get the handy-dandy exception message right there in the debugger window when it breaks.