[webkit-help] can't Build WebKit successfully

[小溪]

Hi!
    I always build WebKit failed after type the commond "$ WebKit/Tools/Scripts/build-webkit --debug",
the details information is as follows.
    Thank you very much to read my letter and I'm looking foward to your replay.




$ WebKit/Tools/Scripts/build-webkit --debug
WebKitSupportLibrary is up-to-date.
Building results into: /home/Administrator/WebKit/WebKitBuild
WEBKITOUTPUTDIR is set to: C:\cygwin\home\Administrator\WebKit\WebKitBuild
WEBKITLIBRARIESDIR is set to: C:\cygwin\home\Administrator\WebKit\WebKitLibraries\win
/cygdrive/c/Program Files/Microsoft Visual Studio 8/Common7/IDE/VCExpress.exe win\WebKit.vcproj\WebKit.sln /build Debug
Traceback (most recent call last):
  File "Tools/Scripts/print-vse-failure-logs", line 113, in <module>
    PrintVisualStudioExpressLogs().main()
  File "Tools/Scripts/print-vse-failure-logs", line 102, in main
    build_log_paths = self._sort_buildlogs(self._find_buildlogs(self._obj_directory()))
  File "Tools/Scripts/print-vse-failure-logs", line 67, in _sort_buildlogs
    build_order = self._build_order()
  File "Tools/Scripts/print-vse-failure-logs", line 60, in _build_order
    sln_path = os.path.join(scm.find_checkout_root(), "WebKit", "win", "WebKit.vcproj", "WebKit.sln")
AttributeError: 'module' object has no attribute 'find_checkout_root'




===== BUILD FAILED ======


Please ensure you have run Tools/Scripts/update-webkit to install dependencies.


You can view build errors by checking the BuildLog.htm files located at:
/home/Administrator/WebKit/WebKitBuild/obj/<project>/<config>.
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