Hi list. We have installed koha3.22.10Tarball version on Ubuntu 14.04 version Now when we tray to install additional language we have such error ****************************************************************** root@host-93-94-220-102:/usr/share/koha/misc/translator# sudo perl translate install hy-Armn Can't locate Koha/Cache.pm in @INC (you may need to install the Koha::Cache module) (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .) at /etc/perl/C4/Context.pm line 112. BEGIN failed--compilation aborted at /etc/perl/C4/Context.pm line 112. Compilation failed in require at LangInstaller.pm line 22. BEGIN failed--compilation aborted at LangInstaller.pm line 22. Compilation failed in require at translate line 25. BEGIN failed--compilation aborted at translate line 25. ******************************************************************** we tried such command cp -a /usr/share/koha/lib/C4/ /etc/perl/ but we had the same error and we tried via cpan install Koha::Cache and reaceved error *************************** Warning: Cannot install Koha::Cache, don't know what it is. ***************************** Now how we can solve this problem?