xcode 4.6 不能實機測試

xcode給我的錯誤訊息
file is universal (3 slices) but does not contain a(n) armv7s slice: /Users/Sundance/Downloads/FBShareSDK3/FacebookSDK.framework/FacebookSDK for architecture armv7s
clang: error: linker command failed with exit code 1 (use -v to see invocation)

後來解決方法
專案的TARGETS的Build Settings修改
Valid Architectures的值
預設為armv7 armv7s
改成armv7 armv６
就可以安裝到實機上了