[Koha] Unknown instance –v. Unknown instance –f.

Dear Koha community Member, After the completion of data conversion process, when I run the commend "sudo koha-rebuild-zebra –v –f library" on the terminal I found following error. Unknown instance –v. Unknown instance –f. kindly help me in this connection so I able to use OPAC of KOHA. sudo koha-rebuild-zebra –v –f library Syed Habib Akhter Jaffri Principal Librarian PASTIC National Centre Quaid-Azam University Campus Islamabad