我收到以下错误 –
GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Sat Feb 12 02:52:12 UTC 2011)
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This GDB was configured as “x86_64-apple-darwin”.Attaching to process 71564.
dyld: Symbol not found: _OBJC_CLASS_$_AVCaptureDevice
Referenced from: /Users/qianfan/Library/Application Support/iPhone Simulator/4.2/Applications/XXXX-XXXX/XXXX.app/XXXX
Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.2.sdk/System/Library/Frameworks/AVFoundation.framework/AVFoundation
in /Users/qianfan/Library/Application Support/iPhone Simulator/4.2/Applications/XXXX-XXXX/XXXX.app/XXXX
sharedlibrary apply-load-rules all
(gdb)
我的应用程序正在使用(静态引用)最新的ZXing iphone代码(截至2011-03-31 2001-04-24测试的两个版本).
我相信AVCaptureDevice存在于所有iOS 4.0中,而zxing正在支持ios 4.0.
当我做：
Macintosh:zxing-trunk XXX$grep _OBJC_CLASS_$_AVCaptureDevice /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/AVFoundation.framework/*
Binary file /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/System/Library/Frameworks/AVFoundation.framework/AVFoundation matches
有什么建议？我会在这找什么？非常感谢.
