auth.getSession() returns Error 100 (e.g. desktop app tute)

[tramdas]

I just tried to go through the Desktop application tutorial (http://wiki.developers.facebook.com/index.php/User:PyFacebook_Tutorial), and it works until I try the fb.auth.getSession() which returns the following error:

Traceback (most recent call last):
File "", line 1, in ?
File "/Users/tramdas/repos/pyfacebook/facebook/init.py", line 670, in getSession
result = self._client('%s.getSession' % self._name, args)
File "/Users/tramdas/repos/pyfacebook/facebook/init.py", line 1123, in call
return self._parse_response(response, method)
File "/Users/tramdas/repos/pyfacebook/facebook/init.py", line 1056, in _parse_response
self._check_error(result)
File "/Users/tramdas/repos/pyfacebook/facebook/init.py", line 1007, in _check_error
raise FacebookError(response['error_code'], response['error_msg'], response['request_args'])
facebook.FacebookError: Error 100: Invalid parameter

This was with Python 2.4.6 on OS X, with PyFacebook checked out a couple of days ago.

This could be related to issue 6 (http://github.com/sciyoshi/pyfacebook/issues#issue/6). Seems like this problem has been coming up from time to time, e.g. see here: http://code.google.com/p/pyfacebook/issues/detail?id=50

Is this a known issue? If it is, maybe someone should make a note of it on the wiki tutorial (http://wiki.developers.facebook.com/index.php/User:PyFacebook_Tutorial) since I'm sure many other newbies like me have lost a fair bit of time trying to get it to work :-)