实施广告横幅非常简单,但当我添加Google Analytics需要的库时,xcode会显示28个错误.

当我删除-ObjC链接器标志时,错误消失了,但这样DPF实现将无法工作.

这是错误,任何想法？

Undefined symbols for architecture x86_64:
  "_NSOverwriteMergePolicy",referenced from:
      +[TAGModel contextWithURL:] in libGoogleAnalyticsServices.a(TAGModel.o)
      -[GAIDataStore contextWithModel:URL:] in libGoogleAnalyticsServices.a(GAIDataStore.o)
  "_NSsqliteErrorDomain",referenced from:
      -[GAIDataStore performBlockAndWait:withError:] in libGoogleAnalyticsServices.a(GAIDataStore.o)
  "_NSsqliteStoreType",referenced from:
      +[TAGModel coordinatorWithURL:] in libGoogleAnalyticsServices.a(TAGModel.o)
      -[GAIDataStore coordinatorWithModel:URL:] in libGoogleAnalyticsServices.a(GAIDataStore.o)
  "_OBJC_CLASS_$_NSAttributeDescription",referenced from:
      objc-class-ref in libGoogleAnalyticsServices.a(TAGModel.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAICoreDataUtil.o)
  "_OBJC_CLASS_$_NSEntityDescription",referenced from:
      objc-class-ref in libGoogleAnalyticsServices.a(TAGDataProvider.o)
      objc-class-ref in libGoogleAnalyticsServices.a(TAGModel.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAIDataStore.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAICoreDataUtil.o)
  "_OBJC_CLASS_$_NSFetchRequest",referenced from:
      objc-class-ref in libGoogleAnalyticsServices.a(TAGModel.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAIDataStore.o)
  "_OBJC_CLASS_$_NSManagedObject",referenced from:
      _OBJC_CLASS_$_TAGHit in libGoogleAnalyticsServices.a(TAGHit.o)
      _OBJC_CLASS_$_GAIHit in libGoogleAnalyticsServices.a(GAIHit.o)
      _OBJC_CLASS_$_GAIProperty in libGoogleAnalyticsServices.a(GAIProperty.o)
  "_OBJC_CLASS_$_NSManagedObjectContext",referenced from:
      objc-class-ref in libGoogleAnalyticsServices.a(TAGModel.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAIDataStore.o)
  "_OBJC_CLASS_$_NSManagedObjectModel",referenced from:
      objc-class-ref in libGoogleAnalyticsServices.a(TAGModel.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAICoreDataUtil.o)
  "_OBJC_CLASS_$_NSPersistentStoreCoordinator",referenced from:
      objc-class-ref in libGoogleAnalyticsServices.a(TAGModel.o)
      objc-class-ref in libGoogleAnalyticsServices.a(GAIDataStore.o)
  "_OBJC_MetaCLASS_$_NSManagedObject",referenced from:
      _OBJC_MetaCLASS_$_TAGHit in libGoogleAnalyticsServices.a(TAGHit.o)
      _OBJC_MetaCLASS_$_GAIHit in libGoogleAnalyticsServices.a(GAIHit.o)
      _OBJC_MetaCLASS_$_GAIProperty in libGoogleAnalyticsServices.a(GAIProperty.o)
  "_sqlite3_bind_blob",referenced from:
      -[TAGDataLayerPersistentStoreImpl writeEntriesToDatabase:expireTime:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_bind_int",referenced from:
      -[TAGDataLayerPersistentStoreImpl deleteEntries:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_bind_int64",referenced from:
      -[TAGDataLayerPersistentStoreImpl writeEntriesToDatabase:expireTime:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl peekEntryIds:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntriesOlderThan:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_bind_text",referenced from:
      -[TAGDataLayerPersistentStoreImpl clearKeysWithPrefixSingleThreaded:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl writeEntriesToDatabase:expireTime:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_close",referenced from:
      -[TAGDataLayerPersistentStoreImpl closeDatabase] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_column_blob",referenced from:
      -[TAGDataLayerPersistentStoreImpl loadSerialized] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_column_bytes",referenced from:
      -[TAGDataLayerPersistentStoreImpl loadSerialized] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_column_int64",referenced from:
      -[TAGDataLayerPersistentStoreImpl peekEntryIds:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl numStoredEntries] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_column_text",referenced from:
      -[TAGDataLayerPersistentStoreImpl loadSerialized] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_errcode",referenced from:
      -[TAGDataLayerPersistentStoreImpl preparesql:description:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_errmsg",referenced from:
      -[TAGDataLayerPersistentStoreImpl clearKeysWithPrefixSingleThreaded:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl writeEntriesToDatabase:expireTime:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntries:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl numStoredEntries] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntriesOlderThan:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl tablePresent:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl openDatabaseAndInitStatements] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      ...
  "_sqlite3_finalize",referenced from:
      -[TAGDataLayerPersistentStoreImpl clearKeysWithPrefixSingleThreaded:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntries:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl tablePresent:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl openDatabaseAndInitStatements] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl closeDatabase] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_open",referenced from:
      -[TAGDataLayerPersistentStoreImpl openDatabaseAndInitStatements] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_prepare_v2",referenced from:
      -[TAGDataLayerPersistentStoreImpl preparesql:description:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_reset",referenced from:
      -[TAGDataLayerPersistentStoreImpl loadSerialized] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl writeEntriesToDatabase:expireTime:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl peekEntryIds:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl numStoredEntries] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntriesOlderThan:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
  "_sqlite3_step",referenced from:
      -[TAGDataLayerPersistentStoreImpl clearKeysWithPrefixSingleThreaded:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl loadSerialized] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl writeEntriesToDatabase:expireTime:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntries:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl peekEntryIds:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl numStoredEntries] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      -[TAGDataLayerPersistentStoreImpl deleteEntriesOlderThan:] in libGoogleAnalyticsServices.a(TAGDataLayerPersistentStoreImpl.o)
      ...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command Failed with exit code 1 (use -v to see invocation)