[Dovecot] Quota plugin problem

[Max "CtRiX"]

   Hi,

I'm using dovecot beta3 on a debian sarge (unstable debs backported).

I have successfully managed to make dovecot-lda to work but enabling 
modules it seems not to work and gives me strange error messages.

Postfix logs follows:

Feb 26 16:35:38 aretha postfix/qmgr[23520]: 7AADF70: 
from=<test at test.it>, size=719440, nrcpt=1 (queue active)
Feb 26 16:35:38 aretha postfix/smtpd[24174]: disconnect from 
localhost.localdomain[127.0.0.1]
Feb 26 16:35:38 aretha deliver: 
dlopen(/usr/lib/dovecot/modules/lda/lib02_trash_plugin.so) failed: 
/usr/lib/dovecot/modules/lda/lib02_trash_plugin.so: undefined symbol: quota
Feb 26 16:35:38 aretha deliver: Unknown quota module: 
/var/mail/virtual/test.it/test/
Feb 26 16:35:38 aretha postfix/pipe[24126]: 7AADF70: to=<test at test.it>, 
relay=dovecot, delay=1, status=sent (test.it)
Feb 26 16:35:38 aretha postfix/qmgr[23520]: 7AADF70: removed
Feb 26 16:35:39 aretha dovecot: imap(test at test.it): 
dlopen(/usr/lib/dovecot/modules/imap/lib02_imap_quota_plugin.so) failed: 
/usr/lib/dovecot/modules/imap/lib02_imap_quota_plugin.so: undefined 
symbol: quota
Feb 26 16:35:39 aretha dovecot: imap(test at test.it): Unknown quota 
module: /var/mail/virtual/test.it/test/

Both Imap and LDA give the same errors.
What did I do wrong?

Max
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