[Koha] Upgrade koha-3.10.05 to koha-3.12.00 but rebuild_zebra.pl not running

[Vikas Salunkhe]

Dear all
i am upgrade koha-3.10.05 to koha-3.12.00 upgrade successfully but when i
try to  rebuild_zebra.pl and  use following command zebra is not running,
the following message is comming,  please guide me

lib at lib:~$ sudo KOHA_CONF=/etc/koha/koha-conf.xml PERL5LIB=/home/koha/lib
/home/koha/bin/migration_tools/rebuild_zebra.pl -b -w -v

[sudo] password for lib:
Warning: You are running this script as the user 'root'.
If this is intentional you must explicitly specify this using the
-run-as-root switch
Please do '/home/koha/bin/migration_tools/rebuild_zebra.pl --help' to see
usage.

Vikas Salunkhe