I am finally trying to do a live upload with s3cmd sync and now I am getting the following error message:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!                                      
    An unexpected error has occurred.                                          
  Please report the following lines to:                                        
   s3tools-bugs@lists.sourceforge.net                                          
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!                                      
                                                                               
Problem: OSErr:  No such file or directory: './opt/backup/development.s
msgroup.com/backintime/20110904-060001/backup/usr/share/icons/gnome/16x16/stock/
net/stock_shared-to-me.png'                                                    
S3cmd:   1.0.1                                                                 
                                                                               
Traceback (most recent call last):                                             
  File "/usr/bin/s3cmd", line 2006, in ?                                       
    main()                                                                     
  File "/usr/bin/s3cmd", line 1950, in main                                    
    cmd_func(args)                                                             
  File "/usr/bin/s3cmd", line 1211, in cmd_sync                                
    return cmd_sync_local2remote(args)                                         
  File "/usr/bin/s3cmd", line 1111, in cmd_sync_local2remote                   
    local_list, single_file_local = fetch_local_list(args, recursive = True
)                                                                              
  File "/usr/bin/s3cmd", line 245, in fetch_local_list                         
    list_for_uri, single_file = _get_filelist_local(uri)                       
  File "/usr/bin/s3cmd", line 684, in _get_filelist_local                      
    sr = os.stat_result(os.lstat(full_name))                                   
OSError:  No such file or directory: './opt/backup/development.smsgroup
.com/backintime/20110904-060001/backup/usr/share/icons/gnome/16x16/stock/net/sto
ck_shared-to-me.png'                                                           
                                                                               
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!                                      
    An unexpected error has occurred.                                          
    Please report the above lines to:                                          
   s3tools-bugs@lists.sourceforge.net                                          
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!                                      
                                                                               
It is very possible that the file in question was create temporally and then removed from the directory later, while the system was gathering files.  This is one of the reasons that I excluded the /opt/backup directory.  Also that directory is one that I am using for my local backup and do not want to send it to Amazon.  I am not familiar with python, but it seems to me that the script should ignore a file that is no longer present, or at least give me a warning and continue on.  It should not crash when this happens.