在使用swift更新到Xcode 6 beta 4之后获取dyld_fatal_error

我刚刚下载Xcode 6 beta 4，我的swift项目编译没有错误，但在它得到我的代码，我得到一个dyld_fatal_error刚刚在调用堆栈开始。

和一个带有nop指令的汇编代码中的断点

我得到的控制台错误是

dyld: lazy symbol binding failed: Symbol not found: __TFSsa6C_ARGVGVSs13UnsafePointerGS_VSs4Int8__
  Referenced from: /Users/username/Library/Developer/Xcode/DerivedData/Sudoku-dhrdonaeqzsgcvewndimxbbsltnc/Build/Products/Debug/Sudoku.app/Contents/MacOS/Sudoku
  Expected in: /Users/username/Library/Developer/Xcode/DerivedData/Sudoku-dhrdonaeqzsgcvewndimxbbsltnc/Build/Products/Debug/Sudoku.app/Contents/MacOS/../Frameworks/libswift_stdlib_core.dylib

dyld: Symbol not found: __TFSsa6C_ARGVGVSs13UnsafePointerGS_VSs4Int8__
  Referenced from: /Users/username/Library/Developer/Xcode/DerivedData/Sudoku-dhrdonaeqzsgcvewndimxbbsltnc/Build/Products/Debug/Sudoku.app/Contents/MacOS/Sudoku
  Expected in: /Users/username/Library/Developer/Xcode/DerivedData/Sudoku-dhrdonaeqzsgcvewndimxbbsltnc/Build/Products/Debug/Sudoku.app/Contents/MacOS/../Frameworks/libswift_stdlib_core.dylib

只是这样你知道项目仍然编译，运行良好与Xcode 6 beta 3。

这种最奇怪的问题可以用Clean&构建(或者可能重新启动Xcode)。您也可以考虑从〜/ Library / Developer / Xcode / DerivedData中删除相关文件夹。