I'm having problems running Tools/Scripts/check-webkit-style.  I get the following error:
landerson@landerson-Latitude-E6420:~/RUIH/webkit$ Tools/Scripts/check-webkit-style Source/WebCore/platform/graphics/gstreamer/WebKitWebSourceGStreamer.cpp
Traceback (most recent call last):
  File "Tools/Scripts/check-webkit-style", line 48, in <module>
    sys.exit(CheckWebKitStyle().main())
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/style/main.py", line 127, in main
    host.initialize_scm()
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/common/host.py", line 83, in initialize_scm
    self._scm = detector.default_scm(patch_directories)
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/common/checkout/scm/detection.py", line 55, in default_scm
    scm_system = self.detect_scm_system(cwd, patch_directories)
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/common/checkout/scm/detection.py", line 71, in detect_scm_system
    if SVN.in_working_directory(absolute_path, executive=self._executive):
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/common/checkout/scm/svn.py", line 99, in in_working_directory
    exit_code = executive.run_command(svn_info_args, cwd=path, return_exit_code=True)
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/common/system/executive.py", line 431, in run_command
    close_fds=self._should_close_fds())
  File "/home/landerson/RUIH/webkit/Tools/Scripts/webkitpy/common/system/executive.py", line 502, in popen
    return subprocess.Popen(string_args, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 709, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1326, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory