serveerror.txt

PS C:\Users\Nikki\Desktop\whatwg\web-platform-tests> python .\serve
Traceback (most recent call last):
  File ".\serve", line 5, in <module>
    serve.main()
  File "C:\Users\Nikki\Desktop\whatwg\web-platform-tests\serve.py", line 4, in main
    serve.main()
  File "C:\Users\Nikki\Desktop\whatwg\web-platform-tests\tools\serve\serve.py", line 522, in main
    **kwargs)
  File "C:\Users\Nikki\Desktop\whatwg\web-platform-tests\tools\serve\serve.py", line 475, in load_config
    override_obj = json.load(f)
  File "C:\Python27\lib\json\__init__.py", line 290, in load
    **kw)
  File "C:\Python27\lib\json\__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "C:\Python27\lib\json\decoder.py", line 366, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Python27\lib\json\decoder.py", line 382, in raw_decode
    obj, end = self.scan_once(s, idx)
ValueError: Invalid \escape: line 15 column 27 (char 396)