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Xcodeにこれらのメッセージがあります

duplicate symbol _OBJC_IVAR_$_Cars._color in:
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/Cars.o
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/SpriteSlider.o
duplicate symbol _OBJC_IVAR_$_Cars._brand in:
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/Cars.o
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/SpriteSlider.o
duplicate symbol _OBJC_IVAR_$_Cars._place in:
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/Cars.o
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/SpriteSlider.o
duplicate symbol _OBJC_IVAR_$_Cars._state in:
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/Cars.o
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/SpriteSlider.o
duplicate symbol _OBJC_CLASS_$_Cars in:
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/Cars.o
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/SpriteSlider.o
duplicate symbol _OBJC_METACLASS_$_Cars in:
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/Cars.o
    /Users/myUsername/Library/Developer/Xcode/DerivedData/myApp-ecspkaggqtvfeuglkpunmntelswf/Build/Intermediates/myApp.build/Debug-iphoneos/myApp.build/Objects-normal/armv7/SpriteSlider.o
ld: 6 duplicate symbols for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

それが言及している重複シンボルは重複していません。これらは、次のように Cars クラスで宣言された 4 つのプロパティです。

@property (nonatomic, copy) void (^color)();
@property (nonatomic, copy) void (^brand)(Cars *oneCar, NSSet *touches);
@property (nonatomic, strong) NSString *place;
@property (nonatomic, assign) NSString *state;

他のクラス SpriteSlider にはこれらのプロパティがありません。どうすれば複製できますか？

どうすれば問題を発見できますか。Xcode はより詳細なメッセージを表示できますか? ありがとう

いいえ、ビルド段階で同じクラスが 2 回コンパイルされることはありません。

4

1 に答える 1

1

Cars クラスの .m ファイルを誤って SpriteSlider.m ファイルにインポートしています。「 」に切り替えると、#import "Cars.h"すべての設定が完了します。

そして、どういたしまして！

于 2013-09-14T05:03:39.207 に答える