7. Choose your project,rather than a specific target,and open the Build Settings tab.
Replace the default value of Architectures with armv7.
In the Other Linker Flags section,add -ObjC. If these settings are not visible,change the filter in the Build Settings bar from Basic to All.

在Xcode 4中一切都很好.但是,当我在Xcode 5中打开我的项目时,我在问题导航器中看到以下警告：

Validate Project Settings

Update to recommended settings

当我点击警告时,Xcode将我带到我的项目设置并显示一个带有“取消”和“执行更改”按钮的弹出窗口,以及它要进行的更改的以下描述

Project ‘Your Project’ – Automatically Select Architectures

Project ‘Your Project’ overrides the Architectures setting. This will remove the settings and allow Xcode to automatically select Architectures based on hardware available for the active platform and deployment target.

我尝试点击“执行更改”并让Xcode做任何想做的事情,而且应用程序仍然适用于模拟器.但是,当我尝试插入iPhone 5(支持ARMv7S)并在其上运行时,应用程序无法使用以下链接器错误构建：

Ld /Users/macmini/Library/Developer/Xcode/DerivedData/Your_App-bmrouudjlblpafdjzhpwcuekzgwu/Build/Products/Debug-iphoneos/Your\ App.app/Your\ App normal armv7s
    cd "/Users/macmini/Documents/Your App"
    setenv IPHONEOS_DEPLOYMENT_TARGET 6.1
    setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk -L/Users/macmini/Library/Developer/Xcode/DerivedData/Your_App-bmrouudjlblpafdjzhpwcuekzgwu/Build/Products/Debug-iphoneos -F/Users/macmini/Library/Developer/Xcode/DerivedData/Your_App-bmrouudjlblpafdjzhpwcuekzgwu/Build/Products/Debug-iphoneos -F/Users/macmini/Documents/Your\ App -filelist /Users/macmini/Library/Developer/Xcode/DerivedData/Your_App-bmrouudjlblpafdjzhpwcuekzgwu/Build/Intermediates/Your\ App.build/Debug-iphoneos/Your\ App.build/Objects-normal/armv7s/Your\ App.LinkFileList -dead_strip -ObjC -fobjc-arc -fobjc-link-runtime -miphoneos-version-min=6.1 -framework SystemConfiguration -framework MapKit -framework QuartzCore -framework OpenGLES -lz -licucore -lc++ -framework ImageIO -framework GLKit -framework CoreText -framework CoreLocation -framework AVFoundation -framework CoreData -framework UIKit -framework Foundation -framework CoreGraphics -framework GoogleMaps -Xlinker -dependency_info -Xlinker /Users/macmini/Library/Developer/Xcode/DerivedData/Your_App-bmrouudjlblpafdjzhpwcuekzgwu/Build/Intermediates/Your\ App.build/Debug-iphoneos/Your\ App.build/Objects-normal/armv7s/Your\ App_dependency_info.dat -o /Users/macmini/Library/Developer/Xcode/DerivedData/Your_App-bmrouudjlblpafdjzhpwcuekzgwu/Build/Products/Debug-iphoneos/Your\ App.app/Your\ App

ld: file is universal (2 slices) but does not contain a(n) armv7s slice: /Users/macmini/Documents/Your App/GoogleMaps.framework/GoogleMaps file '/Users/macmini/Documents/Your App/GoogleMaps.framework/GoogleMaps' for architecture armv7s
clang: error: linker command Failed with exit code 1 (use -v to see invocation)

一旦我恢复了Xcode所做的自动更改,我的应用程序再次为iPhone 5编译好了 – 但当然我收到了警告.

我怎样才能满足Xcode并摆脱警告,同时仍允许我的应用程序为iPhone 5成功构建？