[Mailman-Users] How to deal with mailman-2.1.4 NotAMemberError ?

[Chen Fei]

I installed mailman-2.1.4. But when the Mailman verify if the user email is valid,the following bug occur.
How can I solve it?

Bug in Mailman version 2.1.4
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Traceback:
Traceback (most recent call last):
  File "/usr/local/mailman/scripts/driver", line 87, in run_main
    main()
  File "/usr/local/mailman/Mailman/Cgi/roster.py", line 85, in main
    password, addr)
  File "/usr/local/mailman/Mailman/SecurityManager.py", line 220, in WebAuthenticate
    ok = self.CheckCookie(ac, user)
  File "/usr/local/mailman/Mailman/SecurityManager.py", line 300, in CheckCookie
    ok = self.__checkone(c, authcontext, user)
  File "/usr/local/mailman/Mailman/SecurityManager.py", line 310, in __checkone
    key, secret = self.AuthContextInfo(authcontext, user)
  File "/usr/local/mailman/Mailman/SecurityManager.py", line 105, in AuthContextInfo
    secret = self.getMemberPassword(user)
  File "/usr/local/mailman/Mailman/OldStyleMemberships.py", line 102, in getMemberPassword
    raise Errors.NotAMemberError, member
NotAMemberError: xxx at xxx.com