Question

大家好，

[Error: objc-class-ref in ViewController.o
    ld: symbol(s) not found for architecture i386
    clang: error: linker command failed with exit code 1 (use -v to see invocation)] 

I am running an application which will produce sound after button is clicked ,

在看到错误后，我已经包含了所有音频框架

 [ objc-class-ref in ViewController.o
        ld: symbol(s) not found for architecture i386
        clang: error: linker command failed with exit code 1 (use -v to see invocation)
        ]

从堆栈溢出

但它仍然不适合我...请看下面的代码我已经包含了我的.h和.m文件，并建议我一些解决方案

它可能是一个链接器错误但我已经包含了构建阶段的框架并包含在内 #import framework ..请查看我的下面代码，如果我遗漏了什么请告诉我...我是iPhone开发的自学初学者..

        //  ViewController.h



        //  Audioplaying
        //
        //  Created by Vaibhav on 12/31/12.
        //  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
        //

        #import <UIKit/UIKit.h>
        #import <AVFoundation/AVAudioPlayer.h>
         #import <AudioToolbox/AudioToolbox.h>


        @interface ViewController : UIViewController <AVAudioPlayerDelegate >

        {
            AVAudioPlayer *player;
            UIButton *playButton;
        }

        @property (nonatomic, retain) AVAudioPlayer *player;
        @property (nonatomic, retain) IBOutlet UIButton *playButton;

        - (IBAction) play;

        @end


    //
    //  ViewController.m
    // 
    #import "ViewController.h"
    #import <AVFoundation/AVAudioPlayer.h>

    @implementation ViewController

    @synthesize player, playButton;


    - (void)viewDidLoad {

        // grab the path to the caf file
        NSString *soundFilePath =
        [[NSBundle mainBundle] pathForResource: @"blip"
                                        ofType: @"caf"];

        NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath];

        // create a new AVAudioPlayer initialized with the URL to the file
        AVAudioPlayer *newPlayer =
        [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil];


        // set our ivar equal to the new player
        self.player = newPlayer;


        // preloads buffers, gets ready to play
        [player prepareToPlay];
        // set delegate so we can get called back when the sound has finished playing
        [player setDelegate: self];

        [super viewDidLoad];
    }

    // delegate method
    - (void) audioPlayerDidFinishPlaying: (AVAudioPlayer *) player
                            successfully: (BOOL) completed {
        if (completed == YES) {
            self.playButton.enabled = YES;
        }
    }


    // 
    - (IBAction) play {

        self.playButton.enabled = NO;
        [self.player play];

    }
    - (void)viewDidUnload
    {
        [super viewDidUnload];
        // Release any retained subviews of the main view.
        // e.g. self.myOutlet = nil;
    }

    - (void)viewWillAppear:(BOOL)animated
    {
        [super viewWillAppear:animated];
    }

    - (void)viewDidAppear:(BOOL)animated
    {
        [super viewDidAppear:animated];
    }

    - (void)viewWillDisappear:(BOOL)animated
    {
        [super viewWillDisappear:animated];
    }

    - (void)viewDidDisappear:(BOOL)animated
    {
        [super viewDidDisappear:animated];
    }

    - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
    {
        // Return YES for supported orientations
        return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
    }

    @end

错误：

Build target Audioplaying

Ld /Users/vaibhav/Library/Developer/Xcode/DerivedData/Audioplaying-eaaytfuwbstsyffgakkifipcygeu/Build/Products/Debug-iphonesimulator/Audioplaying.app/Audioplaying normal i386
    cd "/Users/vaibhav/Iphone projects/Audioplaying"
    setenv MACOSX_DEPLOYMENT_TARGET 10.6
    setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk -L/Users/vaibhav/Library/Developer/Xcode/DerivedData/Audioplaying-eaaytfuwbstsyffgakkifipcygeu/Build/Products/Debug-iphonesimulator -F/Users/vaibhav/Library/Developer/Xcode/DerivedData/Audioplaying-eaaytfuwbstsyffgakkifipcygeu/Build/Products/Debug-iphonesimulator "-F/Users/vaibhav/Iphone projects/Audioplaying" -filelist /Users/vaibhav/Library/Developer/Xcode/DerivedData/Audioplaying-eaaytfuwbstsyffgakkifipcygeu/Build/Intermediates/Audioplaying.build/Debug-iphonesimulator/Audioplaying.build/Objects-normal/i386/Audioplaying.LinkFileList -mmacosx-version-min=10.6 -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc -Xlinker -no_implicit_dylibs -D__IPHONE_OS_VERSION_MIN_REQUIRED=50000 -framework AVFoundation -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/vaibhav/Library/Developer/Xcode/DerivedData/Audioplaying-eaaytfuwbstsyffgakkifipcygeu/Build/Products/Debug-iphonesimulator/Audioplaying.app/Audioplaying

ld: warning: ignoring file /Users/vaibhav/Iphone projects/Audioplaying/AVFoundation.framework/AVFoundation, file was built for unsupported file format which is not the architecture being linked (i386)
Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_AVAudioPlayer", referenced from:
      objc-class-ref in ViewController.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

只需在Foundation.framework添加AVFoundation.framework和Build Phases=>Link Binaries With Libraries框架，然后尝试一下。

Answer 2

您已经以某种方式在项目中创建了自己的名为AVFoundation.framework的破解框架。这个破坏的框架的存在阻止了链接器使用系统的AVFoundation框架。

您需要删除/Users/vaibhav/Iphone projects/Audioplaying/AVFoundation.framework及其中的所有内容。

链接器错误OBJC_CLASS _ $ _ AVAudioPlayer＆＃34;

2 个答案: