issue with calendar.setScope(.Month, animated: true)

[dantetemp]

in swift example i created two buttons: week, month with corresponding actions.

    @IBAction func monthView(sender: UIButton) {
        self.calendar.setScope(.Month, animated: true)
    }

    @IBAction func weekView(sender: UIButton) {
        self.calendar.setScope(.Week, animated: true)
    }

setScope for week works fine, when i trigger setScope for month i get this error

[SwiftExample.ViewController week:]: unrecognized selector sent to instance 0x125d2cae0
2016-03-25 18:47:23.761 SwiftExample[2069:830336] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SwiftExample.ViewController week:]: unrecognized selector sent to instance 0x125d2cae0'
*** First throw call stack:
(0x183b56e38 0x1831bbf80 0x183b5dccc 0x183b5ac74 0x183a58d1c 0x188cd8ad0 0x188cd8a4c 0x188cc0740 0x188cd833c 0x188cd7f6c 0x188cd0b08 0x188ca0f4c 0x188c9f528 0x183b0d124 0x183b0cbb8 0x183b0a8b8 0x183a34d10 0x18531c088 0x188d09f70 0x10004d7e0 0x1835d28b8)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

[dantetemp]

issue solved, my bad