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

我将 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,我有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:

解决方法

像往常一样升级Xcode时：

>清理构建文件夹(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 - >组织者 – >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.