本文介绍了iOS 4.3上的libobjc.A.dylib编译错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在iOS模拟器4.3中遇到编译错误我实际上无法弄明白，我得到的错误是：
I'm having a compiling error in iOS Simulator 4.3 I can't actually figure it out, The error I get is:
dyld: lazy symbol binding failed: Symbol not found: _objc_retain
Referenced from: /Users/ben/Library/Application Support/iPhone Simulator/4.3.2/Applications/75915A97-7C3D-489A-B7B0-7B6895A4B584/AppName.app/AppName
Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/usr/lib/libobjc.A.dylib
dyld: Symbol not found: _objc_retain
Referenced from: /Users/ben/Library/Application Support/iPhone Simulator/4.3.2/Applications/75915A97-7C3D-489A-B7B0-7B6895A4B584/AppName.app/AppName
Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk/usr/lib/libobjc.A.dylib
注意：
被引用的库（libobjc.A.dylib）实际上位于'预期位置'
代码在iOS5上正常工作设备， d在iOS5模拟器中。
Note:
The library being referenced (libobjc.A.dylib) is actually in the 'Expected Place'The code works fine on an iOS5 device, and in iOS5 Simulator.
推荐答案
在Build中添加 -fobjc-arc 设置=>其他链接器标志（ OTHER_LDFLAGS ）用于不同的配置
Add -fobjc-arc in Build Settings => Other Linker Flags (OTHER_LDFLAGS) for the different configurations
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