ios - Xcode 版本 6.1 (6A1030) - Apple Mach O-Linker 错误 - 构建

Question

我将我的 Xcode 升级到最新版本:版本 6.1 (6A1030)。
我使用 Swift 语言。
当我构建我的应用程序时，我遇到了 25 个问题:

Apple Mach-O Linker error

Undefined symbols for architecture i386:
"__TFE10FoundationCSo11NSPredicateCfMS0_Ft6formatSSGSaPSs11CVarArgType___GSqS0__", referenced from:
          __TFC19TestBentley_Network8EventDAO11updateEventfS0_FCS_5EventT_ in EventDAO.o
          __TFC19TestBentley_Network8EventDAO10deletEventfS0_FCS_5EventT_ in EventDAO.o
      "__TFE10FoundationCSo7NSArray8generatefS0_FT_CS_15NSFastGenerator", referenced from:
          __TFC19TestBentley_Network8EventDAO10deletEventfS0_FCS_5EventT_ in EventDAO.o
      "__TFE10FoundationCSo8NSString24convertFromStringLiteralfMDS0_FVSs12StaticStringDS0_", referenced from:
          __TFO19TestBentley_Network13NotificationsCfMS0_FT8rawValueCSo8NSString_GSqS0__ in Notifications.o
          __TFO19TestBentley_Network13Notificationsg8rawValueCSo8NSString in Notifications.o
          __TFC19TestBentley_Network30NetworkSearchPropositionButtoncfMS0_FT5coderCSo7NSCoder_S0_ in NetworkSearchPropositionButton.o
          __TFC19TestBentley_Network8HomeViewcfMS0_FT5frameVSC6CGRect9networkVCCS_21NetworkViewController9membersVCCS_21MembersViewController10servicesVCCS_22ServicesViewController8profilVCCS_20ProfilViewController8eventsVCCS_20EventsViewController_S0_ in HomeView.o
          __TFC19TestBentley_Network24EventsListViewControllercfMS0_FT_S0_ in EventsListViewController.o
          __TFC19TestBentley_Network8MenuViewcfMS0_FT5frameVSC6CGRect_S0_ in MenuView.o
          __TFC19TestBentley_Network29NetworkSearchPropositionsList18reloadPropositionsfS0_FGSqCSo8NSString_T_ in NetworkSearchPropositionsList.o
          ...
      "__TFE10FoundationSS19_bridgeToObjectiveCfSSFT_CSo8NSString", referenced from:

Answer 1

像升级 Xcode 时一样:

• 清理构建文件夹(产品 ->(Alt 键)-> 清理构建文件夹)
• 清理项目(产品 -> 清理)
• 删除派生数据
  • Xcode < 6.3:窗口 -> 管理器 -> 删除派生数据
  • Xcode >= 6.3: Window -> Projects(选择项目)-> Delete derived data

然后尝试再次构建您的项目。