相关疑难解决方法(0)

我有一个播放声音的按钮,它似乎在模拟器上工作得很好,但我收到这条消息:

Error loading /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn:  dlopen(/System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security
2011-11-01 02:13:02.605 Halloween FX[33484:10703] Error loading /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn:  dlopen(/System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security
2011-11-01 02:13:02.657 Halloween FX[33484:10703] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security
2011-11-01 02:13:02.671 Halloween FX[33484:10703] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in …

我试图使用AVAudioPlayer播放一个简单的声音,我不断在控制台中收到此错误:

2011-09-02 20:29:07.369 MusicLog[967:10103] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

这是我的代码,按下我的按钮时应播放声音:

NSString *soundPath = [[NSBundle mainBundle] pathForResource:@"tick" ofType:@"caf"];
NSError *error;

    NSURL *soundURL = [NSURL fileURLWithPath:soundPath];
    AVAudioPlayer *tickPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL error:&error];
[tickPlayer setDelegate:self];
[tickPlayer setNumberOfLoops:0];
[tickPlayer prepareToPlay];
if (tickPlayer == nil)
{
    NSLog(@"%@", [error description]);
}
else
{
    [tickPlayer play];
}

我是否以某种方式将文件放在错误的位置？我只是将文件拖入项目并根据需要选择副本.

编辑:经过更多的测试后,我发现在运行IOS 4.2模拟器时,我没有得到这个错误,仅在IOS 5模拟器上.我可以假设这是iOS 5中的错误吗？

谢谢,

我有一个实时应用程序,估计有15%的用户报告记录功能不起作用.这在我们的测试设备上没有发生,但报告显示问题是prepareToRecord返回NO.我很难找到AAC格式的样本设置.我的任何设置都关闭了吗？应用程序需要iOS5并使用ARC.

 AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryRecord error:nil];

NSDictionary *recordSettings = [NSDictionary dictionaryWithObjectsAndKeys:
 [NSNumber numberWithInt:kAudioFormatMPEG4AAC], AVFormatIDKey,
 [NSNumber numberWithFloat:44100.0], AVSampleRateKey,
 [NSNumber numberWithInt:1], AVNumberOfChannelsKey,
 [NSNumber numberWithInt:AVAudioQualityHigh], AVSampleRateConverterAudioQualityKey,
 [NSNumber numberWithInt:128000], AVEncoderBitRateKey,
 [NSNumber numberWithInt:16], AVEncoderBitDepthHintKey,
 nil];

NSString *fileName = [NSString stringWithFormat:@"%@%@.caf", verseGUID, bRecordingReference ? @"_ref" : @""];
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/%@", [[Utilities sharedInstance] documentsDirectoryPath], fileName]];
NSError *error = nil;
audioRecorder = [[AVAudioRecorder alloc] initWithURL:url settings:recordSettings error:&error];
if([audioRecorder prepareToRecord]){
    [audioRecorder record];
}else{
    int errorCode = CFSwapInt32HostToBig([error code]);
    NSLog(@"Error: %@ [%4.4s])", [error localizedDescription], …