1. On the main menu, choose Run | View Breakpoints, or press ⇧⌘F8 or ⇧⌘F8⇧⌘F8 or ⇧⌘F8⇧⌘F8 or ⇧⌘F8⌥ F9, ⌥F9 or ⌥F9^ ⇧ F8, ⌃⇧F8 or ⌃⇧F8.
  2. In the Breakpoints dialog box that opens, click add.
  3. Select Exception Breakpoints from the drop-down list.

    create_exception_breakpoint

  4. In the Select Exception Class dialog box, specify the desired exception class from the library, or from the project, and click OK.