Xcode版本6.1（6A1030）-Apple Mach O-Linker错误-建筑物

Question

我已将Xcode升级到最新版本：6.1版（6A1030）。
我使用Swift语言。
构建应用程序时，我遇到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

与往常一样，在升级Xcode时：

• 清理您的构建文件夹（产品->（Alt键）->清理构建文件夹）
• 清洁项目（产品->清洁）
• 删除派生数据
  • Xcode <6.3：窗口->管理器->删除派生数据
  • Xcode> = 6.3：窗口->项目（选择项目）->删除派生数据

然后尝试再次构建您的项目。