Koha-3.12.00-alpha Opac searching problem Search system preferences UseQueryParser-----do not try Software error: Base class package "OpenILS::QueryParser" is empty.(Perhaps you need to 'use' the module which defines that package first,or make that module available in @INC (@INC contains: /usr/share/koha/lib /etc/perl /usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/lib/site_perl .).at /usr/share/koha/lib/Koha/QueryParser/Driver/PQF.pm line 2.BEGIN failed--compilation aborted at /usr/share/koha/lib/Koha/QueryParser/Driver/PQF.pm line 2. For help, please send mail to the webmaster (webmaster@ubuntu), giving this error message and the time and date of the error. Software error: [Tue Mar 19 10:02:44 2013] opac-search.pl: Base class package "OpenILS::QueryParser" is empty.[Tue Mar 19 10:02:44 2013] opac-search.pl: (Perhaps you need to 'use' the module which defines that package first,[Tue Mar 19 10:02:44 2013] opac-search.pl: or make that module available in @INC (@INC contains: /usr/share/koha/lib /etc/perl /usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14 /usr/local/lib/site_perl .).[Tue Mar 19 10:02:44 2013] opac-search.pl: at /usr/share/koha/lib/Koha/QueryParser/Driver/PQF.pm line 2.[Tue Mar 19 10:02:44 2013] opac-search.pl: BEGIN failed--compilation aborted at /usr/share/koha/lib/Koha/QueryParser/Driver/PQF.pm line 2.Compilation failed in require at /usr/share/koha/lib/C4/Search.pm line 1225. For help, please send mail to the webmaster (webmaster@ubuntu), giving this error message and the time and date of the error. UseQueryParser-----Try Software error: Can't call method "new" on an undefined value at /usr/share/koha/lib/C4/Context.pm line 959. For help, please send mail to the webmaster (webmaster@ubuntu), giving this error message and the time and date of the error. 3. koha-conf.xml <zebra_bib_index_mode>dom</zebra_bib_index_mode> <zebra_auth_index_mode>dom</zebra_auth_index_mode> <queryparser_config>/etc/koha/searchengine/queryparser.yaml</queryparser_config> </config> </yazgfs>