Question

My application is running fine on simulator without any errors. I am using facebook SDK in my application. When i try to run it on device, t\it shows me linker error. I went through some similar questions and tried their solutions like in the following links

tried this solution

and one more solution somewhere , saying unchecking Enable OpenMP Support worked for them but i can not find this option in my xcode4.5.

Ld "/Users/devusa/Library/Developer/Xcode/DerivedData/Virtual_Mirrorr-bsbznuqiwhaypbbjiftsqpwpmkdo/Build/Intermediates/Virtual Mirrorr.build/Debug-iphoneos/Virtual Mirror.build/Objects-normal/armv7s/Virtual Mirror" normal armv7s
cd "/Users/devusa/Documents/Start/Virtual Mirrorr"
setenv IPHONEOS_DEPLOYMENT_TARGET 4.3
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/iPhoneOS6.0.sdk -L/Users/devusa/Library/Developer/Xcode/DerivedData/Virtual_Mirrorr-bsbznuqiwhaypbbjiftsqpwpmkdo/Build/Products/Debug-iphoneos -F/Users/devusa/Library/Developer/Xcode/DerivedData/Virtual_Mirrorr-bsbznuqiwhaypbbjiftsqpwpmkdo/Build/Products/Debug-iphoneos "-F/Users/devusa/Documents/Start/Virtual Mirrorr" -filelist "/Users/devusa/Library/Developer/Xcode/DerivedData/Virtual_Mirrorr-bsbznuqiwhaypbbjiftsqpwpmkdo/Build/Intermediates/Virtual Mirrorr.build/Debug-iphoneos/Virtual Mirror.build/Objects-normal/armv7s/Virtual Mirror.LinkFileList" -dead_strip -lsqlite3.0 -fobjc-arc -fobjc-link-runtime -miphoneos-version-min=4.3 -framework MessageUI -framework QuartzCore -framework SystemConfiguration -framework UIKit -framework Foundation -framework CoreGraphics -framework FacebookSDK -o "/Users/devusa/Library/Developer/Xcode/DerivedData/Virtual_Mirrorr-bsbznuqiwhaypbbjiftsqpwpmkdo/Build/Intermediates/Virtual Mirrorr.build/Debug-iphoneos/Virtual Mirror.build/Objects-normal/armv7s/Virtual Mirror"

ld: file is universal (3 slices) but does not contain a(n) armv7s slice: /Users/devusa/Documents/Start/Virtual Mirrorr/FacebookSDK.framework/FacebookSDK for architecture armv7s
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

Three options:

1. Update to a newer version of the Facebook API
2. Add the armv7s architecture to the build settings of your Facebook framework
3. Remove the armv7s architecture from the build settings of your app

Basically, armv7s is the architecture used on the iPhone 5 and iPad 4. Your app supports it but the Facebook framework you’re using does not.