dovecot - May 2011 - dsync: Invalid mailbox first_recent_uid

For the life of me I can't get dsync to work. Please help!

Remote server runs dovecot out of /usr/local/dovecot2. Everything makes
sense until this line:

  dsync-local(djonas at vitalwerks.com): Error: Invalid mailbox input from
  worker server: Invalid mailbox first_recent_uid

The local uid is 8989 and the remote uid is 89. I added "first_valid_uid
= 89" to the local conf but to no avail. Local version is 2.0.12, remote
is 2.0.1.

# dsync -Dv -u djonas at vitalwerks.com mirror \
  ssh vmail at 192.168.15.54 \
  /usr/local/dovecot2/bin/dsync -Dv -u djonas at vitalwerks.com

dsync(vmail): Debug: Effective uid=8989, gid=8989,
home=/home/vmail/domains/vitalwerks.com/djonas
dsync(vmail): Debug: Quota root: name=user backend=dict
args=vitalwerks.com-djonas:proxy::quota
dsync(vmail): Debug: dict quota: user=vitalwerks.com-djonas,
uri=proxy::quota, noenforcing=0
dsync(vmail): Debug: Namespace : type=private, prefix=, sep=.,
inbox=yes, hidden=no, list=yes, subscriptions=yes
location=maildir:~/Maildir:INBOX=~/Maildir
dsync(vmail): Debug: maildir++:
root=/home/vmail/domains/vitalwerks.com/djonas/Maildir, index=,
control=, inbox=/home/vmail/domains/vitalwerks.com/djonas/Maildir
dsync-local(djonas at vitalwerks.com): Debug: Namespace : Using permissions
from /home/vmail/domains/vitalwerks.com/djonas/Maildir: mode=0770 gid=-1
dsync-local(djonas at vitalwerks.com): Error: Invalid mailbox input from
worker server: Invalid mailbox first_recent_uid
dsync-remote(djonas at vitalwerks.com): Error: read() from proxy client
failed: EOF

On Thu, 2011-05-26 at 23:25 -0700, David Jonas wrote:
> 
>   dsync-local(djonas at vitalwerks.com): Error: Invalid mailbox input from
>   worker server: Invalid mailbox first_recent_uid
> 
> The local uid is 8989 and the remote uid is 89. I added
"first_valid_uid
> = 89" to the local conf but to no avail. Local version is 2.0.12,
remote
> is 2.0.1. 
That's actually the problem. They talk slightly different protocols.. I
guess I should have added a version number to the protocol. Although
even then you would have only gotten "protocol version mismatch"
error.

You could simply copy v2.0.12's dsync to the remote server and it should
work fine, as long as you're not using any plugins.