这个gdb输出是什么意思？

时间：2011-11-01 02:20:43

标签： ios objective-c audio ios-simulator playback

我有一个播放声音的按钮，它似乎在模拟器上工作得非常好，但我收到了这条消息：

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 /System/Library/Frameworks/Security.framework/Versions/A/Security
2011-11-01 02:13:02.706 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 02:13:02.715 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 02:13:02.732 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 02:13:02.741 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

我曾经有报道说，在某些设备上根本没有播放。

7 个答案:

答案 0 :(得分：203)

这是iOS SDK 5 / Simulator的确认错误 - 一旦模拟器尝试播放声音（来自电影或任何其他声源）就会发生。不过不用担心，它在实际设备上不会出现问题。

您提到了用户在使用您的应用时遇到问题的实际报告 - 这些问题与您上面发布的问题无关/无关。

此问题由Apple根据错误ID＃10555404提交。我自己提交了一份报告，该报告最终被确定为上述错误ID的伪装。

该问题目前仍然存在，直到并包括Xcode版本4.4.1（4F1003），iOS SDK 5.1。

<强>更新

此问题最终在Xcode版本4.5（4G182），iOS SDK 6.0中修复。

注意

当与iOS 5.1（或更低版本）模拟器一起使用时，即使在Xcode 4.5版中，该问题仍然存在。

答案 1 :(得分：16)

我找到了解决此问题的临时解决方法：只需在播放视频前关闭断点即可。然后它在模拟器中工作正常。

答案 2 :(得分：4)

如果您错误地导入Mac OSX框架而不是iOs框架，则可能会出现此问题。删除Mac OS框架对我有用

答案 3 :(得分：4)

使用强大的头文件中的AVAudioPlayer作为ivar： @property（强大，非原子）AVAudioPlayer * audioPlayer 对我来说这很有效。

答案 4 :(得分：4)

以下代码可用于在模拟器上进行测试。 

if (beep == nil)
    NSLog(@"audio player not initialized");             
else if(TARGET_IPHONE_SIMULATOR) 
{
    NSLog(@"beep play"); 
} 
else
{
    [beep play];  
}

答案 5 :(得分：1)

这是很多人都遇到的问题。我还没有找到任何解决方案。

我强烈建议提交雷达。 这是我的http://openradar.appspot.com/radar?id=1466402

答案 6 :(得分：1)

Till所说的是绝对正确的。但是当使用ARC时，这个问题可能与另一个问题相关（没有因果关系）：如果AVAudioPlayer实际上没有播放任何声音，这对你来说可能很有趣：https://stackoverflow.com/a/7744831/838068

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