我正在关注在线类(class)并获得库存，因为即使按照步骤(或者我可能错过了一些？)，我也会出错。我在谷歌和这里进行了几次搜索，但由于我是 IOS 开发的新手，即使有其他人的回答，我也能解决我的问题..

这里是错误:

2015-06-12 23:03:17.477 Pirate Game[6511:1193126] -[RBTile setWeapon:]: unrecognized selector sent to instance 0x78830dc0
2015-06-12 23:03:17.481 Pirate Game[6511:1193126] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[RBTile setWeapon:]: unrecognized selector sent to instance 0x78830dc0'
*** First throw call stack:
(
0   CoreFoundation                      0x00874746 __exceptionPreprocess + 182
1   libobjc.A.dylib                     0x004fda97 objc_exception_throw + 44
2   CoreFoundation                      0x0087c705 -[NSObject(NSObject) doesNotRecognizeSelector:] + 277
3   CoreFoundation                      0x007c3287 ___forwarding___ + 1047
4   CoreFoundation                      0x007c2e4e _CF_forwarding_prep_0 + 14
5   Pirate Game                         0x00014a94 -[RBFactory tiles] + 388
6   Pirate Game                         0x00011c6f -[ViewController viewDidLoad] + 143
7   UIKit                               0x00d97da4 -[UIViewController loadViewIfRequired] + 771
8   UIKit                               0x00d98095 -[UIViewController view] + 35
9   UIKit                               0x00c89e85 -[UIWindow addRootViewControllerViewIfPossible] + 66
10  UIKit                               0x00c8a34c -[UIWindow _setHidden:forced:] + 287
11  UIKit                               0x00c8a648 -[UIWindow _orderFrontWithoutMakingKey] + 49
12  UIKit                               0x00c989b6 -[UIWindow makeKeyAndVisible] + 80
13  UIKit                               0x00c2ded8 -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3217
14  UIKit                               0x00c31422 -[UIApplication _runWithMainScene:transitionContext:completion:] + 1639
15  UIKit                               0x00c4a93e __84-[UIApplication _handleApplicationActivationWithScene:transitionContext:completion:]_block_invoke + 59
16  UIKit                               0x00c3004a -[UIApplication workspaceDidEndTransaction:] + 155
17  FrontBoardServices                  0x031d6c9e __37-[FBSWorkspace clientEndTransaction:]_block_invoke_2 + 71
18  FrontBoardServices                  0x031d672f __40-[FBSWorkspace _performDelegateCallOut:]_block_invoke + 54
19  FrontBoardServices                  0x031e8d7c __31-[FBSSerialQueue performAsync:]_block_invoke_2 + 30
20  CoreFoundation                      0x00796050 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 16
21  CoreFoundation                      0x0078b963 __CFRunLoopDoBlocks + 195
22  CoreFoundation                      0x0078b7bb __CFRunLoopRun + 2715
23  CoreFoundation                      0x0078aa5b CFRunLoopRunSpecific + 443
24  CoreFoundation                      0x0078a88b CFRunLoopRunInMode + 123
25  UIKit                               0x00c2fa02 -[UIApplication _run] + 571
26  UIKit                               0x00c33106 UIApplicationMain + 1526
27  Pirate Game                         0x000148da main + 138
28  libdyld.dylib                       0x02c00ac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

所以我可以从我的搜索中了解到，我正在尝试发送不同类型的东西。我对所有 3 个自定义类都有同样的问题。

//
//  RBFactory.m
//  Pirate Game
//
//  Created by Richard Berube on 2015-06-06.
//  Copyright (c) 2015 Richard Berube. All rights reserved.
//

#import "RBFactory.h"
#import "RBTile.h"

@implementation RBFactory

-(NSArray *)tiles{


    RBTile *tile1 = [[RBTile alloc] init];
    tile1.story = @"Captain, we need a fearless leader such as you to undertake a voyage. You must stop the evil pirate Boss before he steals any more plunder. Would you like a blunted sword to get started?";
    tile1.backgroundImage = [UIImage imageNamed:@"PirateStart.png"];
    CCWeapon *bluntedSword = [[CCWeapon alloc]init];
    bluntedSword.name = @"Blunted sword";
    bluntedSword.damage = 12;
    NSLog(@"%@", bluntedSword);
    tile1.weapon = bluntedSword;
    tile1.actionButtonName =@"Take the sword";

我测试了断点和崩溃发生

tile1.weapon = bluntedSword;

NSLog 返回:

2015-06-12 23:03:14.602 Pirate Game[6511:1193126] <CCWeapon: 0x786a6f50>

这是瓷砖类

//
//  RBTile.h
//  Pirate Game
//
//  Created by Richard Berube on 2015-06-06.
//  Copyright (c) 2015 Richard Berube. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import "CCWeapon.h"
#import "CCArmor.h"

@interface RBTile : NSObject

@property (nonatomic, strong) NSString *story;
@property (strong, nonatomic) UIImage *backgroundImage;
@property (nonatomic, strong) NSString *actionButtonName;
@property (strong, nonatomic) CCWeapon *weapon;
@property (strong, nonatomic) CCArmor *armor;
@property (nonatomic) int healthEffect;

@end

.m 文件为空

//
//  RBTile.m
//  Pirate Game
//
//  Created by Richard Berube on 2015-06-06.
//  Copyright (c) 2015 Richard Berube. All rights reserved.
//

#import "RBTile.h"

@implementation RBTile

@end

最后一个是自定义类，实际上是其中一个，因为所有 3 个都导致相同的问题..

//
//  CCWeapon.h
//  Pirate Game
//
//  Created by Richard Berube on 2015-06-10.
//  Copyright (c) 2015 Richard Berube. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface CCWeapon : NSObject

@property (strong,nonatomic) NSString *name;
@property (nonatomic) int damage;

@end

如果能提供一点帮助，我们将不胜感激!我现在有货 2 天了。我可以重新开始所有视频(在线类(class))，但这不会教我如何调试 ..

也许最后有用的信息可能是我使用了 Xcode 6.3.1

谢谢!

更新 1:最终项目是这个 https://github.com/codecoalition/Pirate-Adventure-Assignment/tree/master/Pirate%20Adventure

我的RBtile是github项目中的CCtile

更新 2:这是我的 View Controller

//
//  ViewController.m
//  Pirate Game
//
//  Created by Richard Berube on 2015-06-06.
//  Copyright (c) 2015 Richard Berube. All rights reserved.
//

#import "ViewController.h"
#import "RBFactory.h"
#import "RBTile.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    RBFactory *factory = [[RBFactory alloc]init];
    self.tiles = [factory tiles];
    self.character = [factory character];
    self.currentPoint = CGPointMake(0, 0);
    [self updateTile];
    [self updateButtons];
    [self updateCharacterStatsForArmor:nil withWeapons:nil withHealthEffect:0];
}

-(void)updateTile{
    RBTile *tileModel = [[self.tiles objectAtIndex:self.currentPoint.x] objectAtIndex:self.currentPoint.y];
    self.storyLabel.text = tileModel.story;
    self.backgroundImageView.image = tileModel.backgroundImage;
    self.healthLabel.text = [NSString stringWithFormat:@"%i", self.character.health];
    self.damageLabel.text = [NSString stringWithFormat:@"%i", self.character.damage];
    self.armorLabel.text = self.character.armor.name;
    self.weaponLabel.text = self.character.weapon.name;
    [self.actionButton setTitle:tileModel.actionButtonName forState:UIControlStateNormal];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)actionButtonPressed:(UIButton *)sender {

    RBTile *tile = [[self.tiles objectAtIndex:self.currentPoint.x] objectAtIndex:self.currentPoint.y];
    [self updateCharacterStatsForArmor:tile.armor withWeapons:tile.weapon withHealthEffect:tile.healthEffect];
    [self updateTile];
}

- (IBAction)northButtonPressed:(UIButton *)sender {

    self.currentPoint = CGPointMake(self.currentPoint.x, self.currentPoint.y +1);
    [self updateButtons];
    [self updateTile];
}

- (IBAction)southButtonPressed:(UIButton *)sender {

    self.currentPoint = CGPointMake(self.currentPoint.x, self.currentPoint.y -1);
    [self updateButtons];
    [self updateTile];

}

- (IBAction)eastButtonPressed:(UIButton *)sender {

    self.currentPoint = CGPointMake(self.currentPoint.x + 1, self.currentPoint.y);
    [self updateButtons];
    [self updateTile];
}

- (IBAction)westButtonPressed:(UIButton *)sender {

    self.currentPoint = CGPointMake(self.currentPoint.x - 1, self.currentPoint.y);
    [self updateButtons];
    [self updateTile];
}

- (IBAction)restartButtonPressed:(UIButton *)sender {
}

-(void)updateButtons{
    self.westButton.hidden = [self tilesExistAtPoint:CGPointMake(self.currentPoint.x -1, self.currentPoint.y)];
    self.eastButton.hidden = [self tilesExistAtPoint:CGPointMake(self.currentPoint.x+1, self.currentPoint.y)];
    self.northButton.hidden = [self tilesExistAtPoint:CGPointMake(self.currentPoint.x, self.currentPoint.y+1)];
    self.southButton.hidden = [self tilesExistAtPoint:CGPointMake(self.currentPoint.x, self.currentPoint.y-1)];
}

-(BOOL)tilesExistAtPoint:(CGPoint)point{
    if (point.y >= 0 && point.x >=0 && point.x < [self.tiles count] && point.y < [[self.tiles objectAtIndex:point.x] count]) {
        return NO;
    }
    else{
        return YES;
    }
}

-(void)updateCharacterStatsForArmor:(CCArmor *)armor withWeapons:(CCWeapon *)weapon withHealthEffect:(int)healtEffect{

    if (armor != nil ) {
        self.character.health = self.character.health - self.character.armor.health +armor.health;
        self.character.armor = armor;
    }
    else if (weapon != nil){
        self.character.damage = self.character.damage - self.character.weapon.damage + weapon.damage;
        self.character.weapon = weapon;
    }
    else if (healtEffect != 0){
        self.character.health = self.character.health + healtEffect;
    }
    else {
        self.character.health = self.character.health + self.character.armor.health;
        self.character.damage = self.character.damage + self.character.weapon.damage;
    }
}

@end

另一个更新:

我能够通过断点找到我的一些属性没有显示的问题。

实际上应该是这样的:

现在我知道，当我尝试传递 tile1.weapon = bluntedSword; 时，它不起作用，因为 tile1.weapon 不存在。但是如果你看一下我的 RBTile.h 我所有的属性(property)都在那里..

最佳答案

我正在学习相同的类(class)，我的代码与您的相同，并且可以正常工作。 Tile.m 文件是空的。

在最近的 Xcode 版本中，synthesize 语句并不总是必需的。我认为，一些罕见的情况仍然需要它们。

我认为您在调试窗口中看不到其他属性的原因是创建它们的代码尚未运行。

尝试注释掉与 bluntedSword 相关的行，看看其他属性是否设置成功，或者它们是否也导致应用程序崩溃。

要尝试的另一件事是重新键入导致问题的行(而不是复制和粘贴)和相关行，我知道这听起来很愚蠢。有时这会奏效，因此值得一试。

祝你好运!

关于ios - 由于我的 'NSInvalidArgumentException' 中的未捕获异常 "game"而终止应用程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30814763/