Cannot build success in Xcode7.2

[passol1988]

   The following build commands failed:
    CompileC    /var/folders/bq/wl3n3w1120bgbpw6j_xvd62r0000gn/T/tmpdcsNcY/Build/Intermediates/WTF.build/Production-iphonesimulator/WTF\ iOS.build/Objects-normal/i386/Assertions.o wtf/Assertions.cpp normal i386 c++ com.apple.compilers.llvm.clang.1_0.compiler
       (1 failure)
     Traceback (most recent call last):
     File "make.py", line 60, in <module>
       outdir = build(args.out, args.derived_data)
      File "make.py", line 30, in build
       jsc.build()
       File "/Users/passol/Documents/gitcopy/JavaScriptCore-iOS/xcodebuild.py", line 147, in build
       self.simulatorbuild.build()
       File "/Users/passol/Documents/gitcopy/JavaScriptCore-iOS/xcodebuild.py", line 97, in build
      self._xcodebuild("build")
      File "/Users/passol/Documents/gitcopy/JavaScriptCore-iOS/xcodebuild.py", line 81, in _xcodebuild
      self.project)
   xcodebuild.PebbleXcodeBuildException: Build failed. xcodebuild exitedwith non-zero return code (None)

always build failed when compile simulator