Ios Xcode:架构x86_64的未定义符号_OBJC“U类”AVPlayer“；

我尝试在我的应用程序中使用

AVPlayer

，我制作了一个测试应用程序，它工作得很好，但是当我尝试在我的真实应用程序中实现相同的

AVPlayer

时，它崩溃了，出现以下两个错误：

这是LiveViewController.h：

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

@interface LiveViewController : UIViewController<AVAudioPlayerDelegate>
@property (strong, nonatomic) AVPlayer *audioPlayer;
@property (strong, nonatomic) IBOutlet UIButton *playPauseBtn;
- (IBAction)playAudio:(id)sender;
@end

这些错误是什么？我如何修复它们

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注意：我搜索了这些错误，但没有找到解决方案。

解决方案：将

AVFoundation.framework

添加到项目的构建阶段

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希望这能有所帮助。

只需将

AVKit.framework

与构建阶段的库链接在二进制文件中即可

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转到>>构建阶段。>>用库链接二进制文件>>添加AVKit.framework

您是否已将AVFoundation.framework添加到项目的构建阶段？@AlexanderTkachenko我已将其导入头文件中，这还不够吗？不，请检查它是否已添加到构建阶段。您是对的，我忘了查找，它成功了：）太好了：）祝您使用AVFoundation好运）

#import "LiveViewController.h"

@interface LiveViewController ()

@end

@implementation LiveViewController
NSURL *urlStream;

- (void)viewDidLoad {
    [super viewDidLoad];
    
    NSString *urlAddress = @"http://198.178.123.23:8662/stream/1/;listen.mp3";
    urlStream = [NSURL URLWithString:urlAddress];
    self.audioPlayer = [AVPlayer playerWithURL:urlStream];
    
    NSError *error;
    
    if (error)
    {
        NSLog(@"Error in audioPlayer: %@",
              [error localizedDescription]);
    } else {
        [_audioPlayer prepareForInterfaceBuilder];
    }
}

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

- (IBAction)playAudio:(id)sender {
    if(self.audioPlayer.rate > 0 && self.audioPlayer.error == nil){
        [self.audioPlayer pause];
        NSLog(@"Hello there, trying to stop playing!");
        [self.playPauseBtn setImage:[UIImage imageNamed:@"play_button"]  forState:UIControlStateNormal];
    }else{
        self.audioPlayer = [AVPlayer playerWithURL:urlStream];
        [self.audioPlayer play];
        NSLog(@"Hello there, trying to play!");
        [self.playPauseBtn setImage:[UIImage imageNamed:@"pause_button"] forState:UIControlStateNormal];
    }
}

-(void)audioPlayerDidFinishPlaying:
(AVAudioPlayer *)player successfully:(BOOL)flag
{
}

-(void)audioPlayerDecodeErrorDidOccur:
(AVAudioPlayer *)player error:(NSError *)error
{
}

-(void)audioPlayerBeginInterruption:(AVAudioPlayer *)player
{
}

-(void)audioPlayerEndInterruption:(AVAudioPlayer *)player
{
}

@end