Cannot perform `bzr pull'

[Xue Fuqiao]

I changed my SSH Public Keys using `ssh-keygen' and registered it on
Savannah just now.  Then I wanted to update my mirror:

  $ bzr pull
  Using saved parent location: bzr+ssh://address@hidden/emacs/trunk/
  The authenticity of host 'bzr.savannah.gnu.org (140.186.70.72)' can't be 
established.
  RSA key fingerprint is 80:5a:b0:0c:ec:93:66:29:49:7e:04:2b:fd:ba:2c:d5.
  Are you sure you want to continue connecting (yes/no)? yes
  
  Warning: Permanently added 'bzr.savannah.gnu.org,140.186.70.72' (RSA) to the 
list of known hosts.
  Enter passphrase for key '/home/xfq/.ssh/id_rsa': 
  bzr: ERROR: No such file: 
u'/home/xfq/emacs-bzr/.bzr/repository/upload/zxgg4mdkkyp9c6buxyue.pack': [Errno 
2] No such file or directory: 
u'/home/xfq/emacs-bzr/.bzr/repository/upload/zxgg4mdkkyp9c6buxyue.pack'

I haven't met this problem before.  How can I resolve this problem?

Thanks for any help.

-- 
Xue Fuqiao
http://www.gnu.org/software/emacs/