tahoe won't start

gistfile1.txt

C:\Users\chris>python c:\tahoe\bin\tahoe start -d c:\tahoe_data
STARTING 'c:\tahoe_data'
Unhandled Error
Traceback (most recent call last):
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\application\app.py", line 622, in run
    runApp(config)
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\scripts\twistd.py", line 23, in runApp
    _SomeApplicationRunner(config).run()
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\application\app.py", line 376, in run
    self.application = self.createOrGetApplication()
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\application\app.py", line 441, in createOrGetApplication
    application = getApplication(self.config, passphrase)
--- <exception caught here> ---
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\application\app.py", line 452, in getApplication
    application = service.loadApplication(filename, style, passphrase)
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\application\service.py", line 400, in loadApplication
    application = sob.loadValueFromFile(filename, 'application', passphrase)
  File "c:\tahoe\support\Lib\site-packages\twisted-11.0.0-py2.7-win32.egg\twiste
d\persisted\sob.py", line 210, in loadValueFromFile
    exec fileObj in d, d
  File "tahoe-client.tac", line 10, in <module>
    c = client.Client()
  File "c:\tahoe\src\allmydata\client.py", line 142, in __init__
    self.init_storage()
  File "c:\tahoe\src\allmydata\client.py", line 256, in init_storage
    expiration_sharetypes=expiration_sharetypes)
  File "c:\tahoe\src\allmydata\storage\server.py", line 96, in __init__
    expiration_sharetypes)
  File "c:\tahoe\src\allmydata\storage\expirer.py", line 71, in __init__
    ShareCrawler.__init__(self, server, statefile)
  File "c:\tahoe\src\allmydata\storage\crawler.py", line 86, in __init__
    self.load_state()
  File "c:\tahoe\src\allmydata\storage\crawler.py", line 195, in load_state
    state = pickle.load(f)
exceptions.EOFError:

Failed to load application:


C:\Users\chris>