我正在开发一个简单的游戏,但在加载特定的 UIViewController(称为SPSwipes.swift)时遇到了问题。On the screen, there are three buttons : 5, 10, and 25. When one is picked, a variable is set in that scene and the player moves on to the main Game: GameScene.swift .
据我所知,变量在 GameScene 中被识别,但是当我在模拟器中打开SPSwipes 视图时出现“NSUnknownKeyException”错误。这是通过 segue完成的。这是更详细的错误:
2014-11-09 15:32:43.718 Swipe Racer[2644:1620056] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<Swipe_Racer.SPSwipes 0x7fbf52d461b0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key fiveSwipes.'
*** First throw call stack:
(
0 CoreFoundation 0x000000010c021f35 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x000000010dd1bbb7 objc_exception_throw + 45
2 CoreFoundation 0x000000010c021b79 -[NSException raise] + 9
3 Foundation 0x000000010c4397b3 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 259
4 CoreFoundation 0x000000010bf6be80 -[NSArray makeObjectsPerformSelector:] + 224
5 UIKit 0x000000010cd28c7d -[UINib instantiateWithOwner:options:] + 1506
6 UIKit 0x000000010cb87f98 -[UIViewController _loadViewFromNibNamed:bundle:] + 242
7 UIKit 0x000000010cb88588 -[UIViewController loadView] + 109
8 UIKit 0x000000010cb887f9 -[UIViewController loadViewIfRequired] + 75
9 UIKit 0x000000010cb88c8e -[UIViewController view] + 27
10 UIKit 0x000000010caa7ca9 -[UIWindow addRootViewControllerViewIfPossible] + 58
11 UIKit 0x000000010caa8041 -[UIWindow _setHidden:forced:] + 247
12 UIKit 0x000000010cab472c -[UIWindow makeKeyAndVisible] + 42
13 UIKit 0x000000010ca5f061 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 2628
14 UIKit 0x000000010ca61d2c -[UIApplication _runWithMainScene:transitionContext:completion:] + 1350
15 UIKit 0x000000010ca60bf2 -[UIApplication workspaceDidEndTransaction:] + 179
16 FrontBoardServices 0x000000011383b2a3 __31-[FBSSerialQueue performAsync:]_block_invoke + 16
17 CoreFoundation 0x000000010bf5753c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
18 CoreFoundation 0x000000010bf4d285 __CFRunLoopDoBlocks + 341
19 CoreFoundation 0x000000010bf4d045 __CFRunLoopRun + 2389
20 CoreFoundation 0x000000010bf4c486 CFRunLoopRunSpecific + 470
21 UIKit 0x000000010ca60669 -[UIApplication _run] + 413
22 UIKit 0x000000010ca63420 UIApplicationMain + 1282
23 Swipe Racer 0x000000010be380de top_level_code + 78
24 Swipe Racer 0x000000010be3811a main + 42
25 libdyld.dylib 0x000000010e507145 start + 1
26 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
如您所见,我的第一个变量 FiveSwipes 存在问题(我想其他两个变量也会有错误)。't his class is not key value coding-compliant for the key FiveSwipes ' 是什么意思?我应该如何修复它?
我的SPSwipes.swift文件:
class SPSwipes: UIViewController {
var no_of_swipes = 0
@IBAction func fiveSwipes(sender: AnyObject) {
no_of_swipes = 5
//and so on
}
先感谢您,
将要