我对这个问题已经疯狂了。我的项目一直都很正常，但是在我添加了Facebook SDK之后，它给出了以下错误（这些错误让我删除armv6，希望之后能够正常工作，但当我继续检查时，它会给出更多的问题）。我现在同时使用arch armv7和armv7s，这就是它给出的错误。
Undefined symbols for architecture armv7:
"_OBJC_CLASS_$_ACAccountStore", referenced from:
objc-class-ref in FacebookSDK(FBSession.o)
"_SKStoreProductParameterITunesItemIdentifier", referenced from:
-[RevMobStoreController openStoreWithITunesItemId:] in RevMobAds(RevMobStoreController.o)
"_ACFacebookAudienceFriends", referenced from:
-[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
"_OBJC_CLASS_$_SKStoreProductViewController", referenced from:
objc-class-ref in RevMobAds(RevMobStoreController.o)
"_OBJC_CLASS_$_GADBannerView", referenced from:
objc-class-ref in NewsViewController.o
objc-class-ref in SportsViewController.o
objc-class-ref in LecViewController.o
objc-class-ref in AccViewController.o
objc-class-ref in JokesViewController.o
objc-class-ref in GamesViewController.o
objc-class-ref in CaricViewController.o
...
"_ACFacebookAppIdKey", referenced from:
-[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
"_ACAccountTypeIdentifierFacebook", referenced from:
+[FBSession renewSystemAuthorization] in FacebookSDK(FBSession.o)
"_ACFacebookAudienceKey", referenced from:
-[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
"_ACFacebookAudienceOnlyMe", referenced from:
-[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
"_kGADAdSizeSmartBannerPortrait", referenced from:
-[NewsViewController shouldAutorotateToInterfaceOrientation:] in NewsViewController.o
-[SportsViewController viewDidLoad] in SportsViewController.o
-[LecViewController viewDidLoad] in LecViewController.o
-[AccViewController viewDidLoad] in AccViewController.o
-[JokesViewController viewDidLoad] in JokesViewController.o
-[GamesViewController viewDidLoad] in GamesViewController.o
-[CaricViewController viewDidLoad] in CaricViewController.o
...
"_OBJC_CLASS_$_GADRequest", referenced from:
objc-class-ref in NewsViewController.o
objc-class-ref in SportsViewController.o
objc-class-ref in LecViewController.o
objc-class-ref in AccViewController.o
objc-class-ref in JokesViewController.o
objc-class-ref in GamesViewController.o
objc-class-ref in CaricViewController.o
...
"_ACFacebookPermissionsKey", referenced from:
-[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
"_CGSizeFromGADAdSize", referenced from:
-[NewsViewController shouldAutorotateToInterfaceOrientation:] in NewsViewController.o
-[SportsViewController viewDidLoad] in SportsViewController.o
-[LecViewController viewDidLoad] in LecViewController.o
-[AccViewController viewDidLoad] in AccViewController.o
-[JokesViewController viewDidLoad] in JokesViewController.o
-[GamesViewController viewDidLoad] in GamesViewController.o
-[CaricViewController viewDidLoad] in CaricViewController.o
...
"_ACFacebookAudienceEveryone", referenced from:
-[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
