swift Uilable error thread 1 breakpoint 2.4 - ios

Question

var lastnumber: String = ""
#IBOutlet var anserField : UILabel Thread 1: breakpoint 2.4
#IBOutlet var operatorLable: UILabel
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func buttonTapped(TheButton: UIButton) {
if anserField.text == "0" {
anserField.text = TheButton.titleLabel.text
} else {
anserField.text = anserField.text + TheButton.titleLabel.text
}
println(TheButton.titleLabel.text);
}
#IBAction func plusTapped(TheButton: UIButton) {
println("plus tapped")
if operatorLable.text == "" {
operatorLable.text = "+"
lastnumber = anserField.text
anserField.text = "0"
}else {
enterTapped(nil)
operatorLable.text = "+"
}
}
#IBAction func minusTapped(TheButton: UIButton) {
println("minus tapped")
if operatorLable.text == "" {
operatorLable.text = "-"
lastnumber = anserField.text
anserField.text = "0"
}else {
enterTapped(nil)
operatorLable.text = "-"
}
}
#IBAction func cleartapped(AnyObject) {
anserField.text = "0"
operatorLable.text = ""
lastnumber = ""
}
#IBAction func enterTapped(AnyObject?) {
var num1 = lastnumber.toInt()
var num2 = anserField.text.toInt()
if !num1 || !num2 {
ShowError()
return
}
var anser = 0
if operatorLable.text == "-" {
anser = num1! - num2!
} else if operatorLable.text == "+" {
anser = num1! + num2!
} else {
ShowError()
return
}
println(anser)
}
func ShowError(){
// to do this
println("there was a error")
}
}
I need help i am new to swift and coding and i am not to god to be honest i can't figure out what is won't with my code please help! (error is at the top just look on the right)
I am coding a calculator(don't know if that helps but why not) and it is a error that i just can't fix i have tried many things but none of it is working it is a single view application for the iPhone 5s and this code is from the viewcontroler. swift this is the decoder and self things if they useful
aDecoder Swift.ImplicitlyUnwrappedOptional<Foundation.NSCoder> 0x00007f829b04fe00 0x00007f829b04fe00
Some UINibDecoder * 0x00007f829b04fe00 0x00007f829b04fe00
[0] UINibDecoder
self calculater.ViewController 0x00007f829a58a980 0x00007f829a58a980
UIKit.UIViewController UIKit.UIViewController
UIKit.UIResponder UIKit.UIResponder
ObjectiveC.NSObject ObjectiveC.NSObject
lastnumber Swift.String unable to read data
core Swift._StringCore
_baseAddress Swift.COpaquePointer 0x00000001078bd538 0x00000001078bd538 calculater.__TEXT.__ustring + 40
value Builtin.RawPointer 0x1078bd538 0x00000001078bd538 calculater.__TEXT.__ustring + 40
_countAndFlags Swift.UWord 9223372036854775808 -9223372036854775808
value Builtin.Word -9223372036854775808 -9223372036854775808
_owner Swift.Optional<AnyObject> nil None
anserField #sil_weak Swift.ImplicitlyUnwrappedOptional<UIKit.UILabel>
Some UIKit.UILabel
UIKit.UIView UIKit.UIView
UIKit.UIResponder UIKit.UIResponder
ObjectiveC.NSObject ObjectiveC.NSObject
operatorLable #sil_weak Swift.ImplicitlyUnwrappedOptional<UIKit.UILabel>
Some UIKit.UILabel
UIKit.UIView UIKit.UIView
UIKit.UIResponder UIKit.UIResponder
ObjectiveC.NSObject ObjectiveC.NSObject
please put in the comment if you need anything else to figure out the problem
this is what hapend when i turned off the breakpoints and i pressed certain buttons
(more info in comments)
2014-08-22 23:39:05.613 calculater[6307:2641435] -[_TtC10calculater14ViewController plusTapped:]: unrecognized selector sent to instance 0x7faad9dbd150
2014-08-22 23:39:05.617 calculater[6307:2641435] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[_TtC10calculater14ViewController plusTapped:]: unrecognized selector sent to instance 0x7faad9dbd150'
* First throw call stack:
(
0 CoreFoundation 0x00000001070f5055 exceptionPreprocess + 165
1 libobjc.A.dylib 0x0000000108bafa1c objc_exception_throw + 45
2 CoreFoundation 0x00000001070fbf1d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x0000000107054dbc ___forwarding_ + 988
4 CoreFoundation 0x0000000107054958 _CF_forwarding_prep_0 + 120
5 UIKit 0x0000000107974196 -[UIApplication sendAction:to:from:forEvent:] + 75
6 UIKit 0x0000000107a78c80 -[UIControl _sendActionsForEvents:withEvent:] + 467
7 UIKit 0x0000000107a7804f -[UIControl touchesEnded:withEvent:] + 522
8 UIKit 0x00000001079b9368 -[UIWindow _sendTouchesForEvent:] + 735
9 UIKit 0x00000001079b9c93 -[UIWindow sendEvent:] + 683
10 UIKit 0x0000000107986f51 -[UIApplication sendEvent:] + 246
11 UIKit 0x0000000107993ec6 _UIApplicationHandleEventFromQueueEvent + 17699
12 UIKit 0x000000010796fcd9 _UIApplicationHandleEventQueue + 1967
13 CoreFoundation 0x000000010702b0b1 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 17
14 CoreFoundation 0x000000010702099d __CFRunLoopDoSources0 + 269
15 CoreFoundation 0x000000010701ffd4 __CFRunLoopRun + 868
16 CoreFoundation 0x000000010701fa06 CFRunLoopRunSpecific + 470
17 GraphicsServices 0x000000010adbeabf GSEventRunModal + 161
18 UIKit 0x0000000107972cf8 UIApplicationMain + 1282
19 calculater 0x0000000106c7f6ed top_level_code + 77
20 calculater 0x0000000106c7f72a main + 42
21 libdyld.dylib 0x0000000109120145 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)