架构armv7 swift的未定义符号

Question

我最近更新到Xcode 6 Beta 6,现在我在Beta 5中运行良好的应用程序中遇到这些错误.我一直在浏览每个方法并注释掉引起问题的行,但是还有另一个解决方案.这是日志.

Undefined symbols for architecture armv7:
  "__TFSs26_forceBridgeFromObjectiveCU__FTPSs9AnyObject_MQ__Q_", referenced from:
      __TFC9BookSmart32AdvanceDetailTableViewController11viewDidLoadfS0_FT_T_ in AdvanceDetailTableViewController.o
      __TFC9BookSmart32AdvanceDetailTableViewController27numberOfSectionsInTableViewfS0_FGSqCSo11UITableView_Si in AdvanceDetailTableViewController.o
      __TFC9BookSmart33AdvancesNewLocationViewController12returnedDatafS0_FCSo12NSDictionaryT_ in AdvancesNewLocationViewController.o
      __TFC9BookSmart31ArtistDetailTableViewController19scrollViewDidScrollfS0_FGSQCSo12UIScrollView_T_ in ArtistDetailTableViewController.o
      __TFC9BookSmart31ArtistDetailTableViewController14viewWillAppearfS0_FSbT_ in ArtistDetailTableViewController.o
      __TFC9BookSmart31ArtistDetailTableViewController11viewDidLoadfS0_FT_T_ in ArtistDetailTableViewController.o
      __TFC9BookSmart18ChatViewController11viewDidLoadfS0_FT_T_ in ChatViewController.o
      ...
  "__TFSs15_arrayForceCastU___FGSaQ__GSaQ0__", referenced from:
      __TFFC9BookSmart33AdvanceSectionTableViewController9tableViewFS0_FTCSo11UITableView21cellForRowAtIndexPathCSo11NSIndexPath_GSqCSo15UITableViewCell_U_FTGSQCSo21MKLocalSearchResponse_GSQCSo7NSError__T_ in AdvanceSectionTableViewController.o
      __TFFFC9BookSmart33AdvanceSectionTableViewController9tableViewFS0_FTCSo11UITableView21cellForRowAtIndexPathCSo11NSIndexPath_GSqCSo15UITableViewCell_U_FTGSQCSo21MKLocalSearchResponse_GSQCSo7NSError__T_U_FTGSQCSo13MKMapSnapshot_GSQS5___T_ in AdvanceSectionTableViewController.o
      __TFC9BookSmart32AdvanceDetailTableViewController11viewDidLoadfS0_FT_T_ in AdvanceDetailTableViewController.o
      __TFC9BookSmart32AdvanceDetailTableViewController9tableViewfS0_FTGSQCSo11UITableView_18commitEditingStyleOSC27UITableViewCellEditingStyle17forRowAtIndexPathGSQCSo11NSIndexPath__T_ in AdvanceDetailTableViewController.o
      __TFC9BookSmart32AdvanceDetailTableViewController17createAdvanceInfofS0_FTGVSs10DictionarySSSS_6forKeySS5andIdSS_T_ in AdvanceDetailTableViewController.o
      __TFC9BookSmart33AdvancesNewLocationViewController21textFieldShouldReturnfS0_FCSo11UITextFieldSb in AdvancesNewLocationViewController.o
      __TFFC9BookSmart33AdvancesNewLocationViewController21textFieldShouldReturnFS0_FCSo11UITextFieldSbU_FTGSQCSo21MKLocalSearchResponse_GSQCSo7NSError__T_ in AdvancesNewLocationViewController.o
      ...
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

Beta 6有一些重大变化,看起来Xcode越来越混乱.完全清洁也无效.

我通过删除Derived文件夹的内容解决了这个和其他类似的难以辨认的错误.您可以转到"首选项">"位置"找到该文件夹​​的位置.

默认路径是: /Users/[your username]/Library/Developer/Xcode/DerivedData