[Dovecot] expire plugin with 1.2 cronjob undefined symbol: capability_string

[Robert Schetterer]

Hi,
sorry if this asked twice,
i ve searched the list and found some equal posts, but couldnt
get my problem fixed with it

if running cronjob with expire ( using mysql )
i get

dovecot -c /etc/dovecot/dovecot.conf --exec-mail ext
/usr/lib/dovecot/expire-tool --test
Info: Loading modules from directory: /usr/lib/dovecot/modules/imap
Info: Module loaded: /usr/lib/dovecot/modules/imap/lib01_acl_plugin.so
Error: dlopen(/usr/lib/dovecot/modules/imap/lib02_imap_acl_plugin.so)
failed: /usr/lib/dovecot/modules/imap/lib02_imap_acl_plugin.so:
undefined symbol: capability_string
Fatal: Couldn't load required plugins

someone tips how to fix it ?
perhaps problems relate to mail_location settings?

dovecot --version
1.2.rc8

-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria