[Dovecot] (no subject)

[Dead Gardens]

Hello dovecot-list.
I have the next problem with include option and managesieve

.dovecot.sieve.log:
info: started log at Oct 18 21:46:18.
main_script: line 2: error: include: global location for included script 'roundcube.sieve' is unavailable (contact system administrator for more information).
main_script: error: validation failed.

.dovecot.sieve file content:
require ["include"];
include :global "roundcube.sieve";

sieve/roundcube.sieve file content:
require ["fileinto"];
# rule:[subject]
if anyof (header :contains "subject" "test")
{
        fileinto "Servers";
        stop;
}

dovecot -n
# 1.2.15: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32.16-linode28 i686 Gentoo Base System release 2.0.1 rootfs
protocols: imap imaps managesieve
ssl_cert_file: /etc/ssl/dovecot/server.pem
ssl_key_file: /etc/ssl/dovecot/server.key
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(managesieve): /usr/libexec/dovecot/managesieve-login
first_valid_uid: 8
last_valid_uid: 8
first_valid_gid: 12
last_valid_gid: 12
mail_uid: 8
mail_gid: 12
mail_location: maildir:/var/vmail/%d/%n/Maildir/:INDEX=/var/vmail/%d/%n/indexes
mail_executable(default): /usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/imap
mail_executable(managesieve): /usr/libexec/dovecot/managesieve
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(managesieve): 
mail_plugin_dir(default): /usr/lib/dovecot/imap
mail_plugin_dir(imap): /usr/lib/dovecot/imap
mail_plugin_dir(managesieve): /usr/lib/dovecot/managesieve
lda:
  postmaster_address: postmaster at domain.com
  mail_plugins: quota sieve
auth default:
  mechanisms: plain login
  user: nobody
  passdb:
    driver: sql
    args: /etc/dovecot/dovecot-sql.conf
  userdb:
    driver: prefetch
  userdb:
    driver: sql
    args: /etc/dovecot/dovecot-sql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
      user: mail
      group: mail
plugin:
  sieve: ~/.dovecot.sieve
  sieve_dir: ~/sieve

Any idea?

Regards.