Question

如何针对Base SDK“iOS 3.1.3”编译iPhone项目，而不会收到错误消息“架构i386的未定义符号”？

使用Base SDK“iOS 5.0”时一切正常，但我需要确保应用程序在iOS 3.1.3下运行。

我使用的是XCode 4.2。我的框架都指向了 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.3.sdk /...

BUILD LOG:

Ld "***" normal i386
    cd ***
    setenv MACOSX_DEPLOYMENT_TARGET 10.5
    setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang
      -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.3.sdk
      -L/Users/***/Library/Developer/Xcode/DerivedData/***/Build/Products/Debug-iphonesimulator
      -F/Users/***/Library/Developer/Xcode/DerivedData/***/Build/Products/Debug-iphonesimulator
      -filelist "/Users/***/Library/Developer/Xcode/DerivedData/***/Build/Intermediates/***.build/Debug-iphonesimulator/***.build/Objects-normal/i386/***.LinkFileList"
      -mmacosx-version-min=10.5
      -Xlinker -objc_abi_version
      -Xlinker 2 -Xlinker -no_implicit_dylibs
      -D__IPHONE_OS_VERSION_MIN_REQUIRED=30000 -lsqlite3
      -framework Foundation -framework UIKit -framework CoreGraphics
      -o "/Users/***/Library/Developer/Xcode/DerivedData/***/Build/Products/Debug-iphonesimulator/***.app/***"

Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_NSAutoreleasePool", referenced from:
  "_OBJC_CLASS_$_NSDictionary", referenced from:
  "_OBJC_CLASS_$_NSDecimalNumber", referenced from:
  "_OBJC_CLASS_$_NSMutableCharacterSet", referenced from:
(and 50 more)

ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

您应该始终针对最新的SDK进行编译。如果您需要支持旧设备，则需要更改“部署目标”构建设置，并在真实设备上进行测试（因为Apple不再提供3.x模拟器）。

Answer 2

看来你的问题更多的是设备/模拟器（i386指的是你的mac中的intel芯片），而不是iOS 3.1.3和iOS 5.0。

Answer 3

删除并阅读您的框架。

Answer 4

尝试将构建设置中的MACOSX_DEPLOYMENT_TARGET更改为10.6或Compiler Default

编译iOS 3.1.3为架构i386＆＃34;提供了未定义的符号。

4 个答案: