我試圖用Xcode製作一個簡單的Mac Objective-C應用程序，以保持兩位玩家玩一個簡單遊戲的分數，每位玩家最多可獲得36分。由於其功能有限，它不是一個非常實用的應用程序，而且主要是用於練習。我試圖用一個首選項窗口來擴展應用程序，當點擊一個菜單項時會彈出。Command/Developer/usr/bin/clang失敗，退出代碼爲1
我創建了一個文件來控制男性項目，然後點擊時彈出一個筆尖。所有這些工作都很好，並且會彈出一個新窗口。我將滑塊，文本字段等放在筆尖上，並將它們連接到動作。所有這一切都很好。
當我試圖將文件導入到根控制器，以便我可以在應用程序中使用用戶的選擇時出現問題。
我得到以下編譯器錯誤：
Command /Developer/usr/bin/clang failed with exit code 1
伴隨着這一切：
Ld "/Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Products/Debug/SimpleScoreKeeper Mac.app/Contents/MacOS/SimpleScoreKeeper Mac" normal x86_64 cd "/Users/myusername/Dropbox/iphone app/SimpleScoreKeeper Mac" setenv MACOSX_DEPLOYMENT_TARGET 10.6 /Developer/usr/bin/clang -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk -L/Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Products/Debug -F/Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Products/Debug -filelist "/Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Intermediates/SimpleScoreKeeper Mac.build/Debug/SimpleScoreKeeper Mac.build/Objects-normal/x86_64/SimpleScoreKeeper Mac.LinkFileList" -mmacosx-version-min=10.6 -framework Cocoa -o "/Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Products/Debug/SimpleScoreKeeper Mac.app/Contents/MacOS/SimpleScoreKeeper Mac"
ld: duplicate symbol _addScores in /Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Intermediates/SimpleScoreKeeper Mac.build/Debug/SimpleScoreKeeper Mac.build/Objects-normal/x86_64/Prefrences.o and /Users/myusername/Library/Developer/Xcode/DerivedData/SimpleScoreKeeper_Mac-bjvjeiybvmwfjpfilvnpezarwkml/Build/Intermediates/SimpleScoreKeeper Mac.build/Debug/SimpleScoreKeeper Mac.build/Objects-normal/x86_64/RootController.o for architecture x86_64 clang: error: linker command failed with exit code 1 (use -v to see invocation) Command /Developer/usr/bin/clang failed with exit code 1
（可能）相關的文件在我的項目如下。
RootController.h - All the interface declarations for stuff in the MainMenu.xib window
RootController.m - Where I need to import the files to
MainMenu.xib - The nib owned by the RootController class
Preferences.h - A file I'd want to import, but it won't work.
Preferences.m - A file I'd (maybe) want to import, but it won't work.
Preferences.xib - The nib owned by the Preferences class.
PreferencesMenuController.h - Where I declare the clickPreferences action. (Liked to MainMenu.xib)
PreferencesMenuController.m - Where I say that clickPreferences opens up Preferences nib. (Linked to MainMenu.xib)
有沒有理由爲什麼我會得到這個錯誤？在我正在導入的課程中，我需要做些什麼？請相當詳細，我是新來的語言somight不知道如何做某些事情。如果有什麼我需要澄清，讓我知道。編號： 這是我無法導入的文件的代碼
#import "Preferences.h"
@implementation Preferences
int addScores;
- (IBAction)addScoresToggled
{
NSLog(@"addScores was toggled.");
}
- (id)initWithWindow:(NSWindow *)window
{
self = [super initWithWindow:window];
if (self) {
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
- (void)windowDidLoad
{
[super windowDidLoad];
}
@end
我沒有任何與下劃線，究竟是什麼意思？下面是我無法導入的.m文件的代碼：編輯：由於註釋中沒有換行符，我還會在問題底部發布代碼。 – ObjectiveProgrammer
'#import「Preferences.h」 @implementation Preferences int addScores; - （IBAction）addScoresToggled { NSLog（@「addScores was toggle。「）; } - （ID）initWithWindow：（NSWindow *）窗口 { 自我= [超級initWithWindow：窗口]; 如果（個體）{ } 返回自我; } - （空隙）的dealloc { [超級的dealloc];} - （無效）windowDidLoad { [超級windowDidLoad]; } @end ' – ObjectiveProgrammer
可能晚了，但「int addScore」處於靜態範圍。所以，如果它包含在其他地方（或者在項目中多次包含文件），則最終會出現重複。 – GtotheB