I installed koha 3.8.0 in ubuntu 12.04 with koha sample data. environment variables (Koha scripts) is add in /etc/cron.d/koha at installation time. . indexing is not working after the restart machine and and run the koha-index-daemon command, show following error Can't locate C4/Context.pm in @INC (@INC contains: /root/perl5/lib/perl5/i686-linux-gnu-thread-multi-64int /root/perl5/lib/perl5/i686-linux-gnu-thread-multi-64int /root/perl5/lib/perl5 /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/local/share/perl/5.14.2/Koha/Contrib/Tamil/RecordReader.pm line 16. BEGIN failed--compilation aborted at /usr/local/share/perl/5.14.2/Koha/Contrib/Tamil/RecordReader.pm line 16. Compilation failed in require at /usr/local/share/perl/5.14.2/Koha/Contrib/Tamil/Indexer.pm line 13. BEGIN failed--compilation aborted at /usr/local/share/perl/5.14.2/Koha/Contrib/Tamil/Indexer.pm line 13. Compilation failed in require at /usr/local/share/perl/5.14.2/Koha/Contrib/Tamil/IndexerDaemon.pm line 13. BEGIN failed--compilation aborted at /usr/local/share/perl/5.14.2/Koha/Contrib/Tamil/IndexerDaemon.pm line 13. Compilation failed in require at /usr/local/bin/koha-index-daemon line 17. BEGIN failed--compilation aborted at /usr/local/bin/koha-index-daemon line 17. after run the export KOHA_CONF=/etc/koha/koha-conf.xml, export PERL5LIB=/usr/share/koha/lib and koha-index-daemon. command manually in terminal indexing is run perfectly and search all new records. How i can solve the indexing problem. Nikunj