Hi Team, i am trying to install OTRS 6.x on ubuntu OS. when i am trying to access http://x.x.x.x/otrs/installer.pl i am getting following error. Can you please advise how to fix the flowing issue. instillation reference https://doc.otrs.com/doc/manual/admin/6 ... -otrs.html https://doc.otrs.com/doc/manual/admin/5.0/en/html/manual-installation-of-otr... [Fri Mar 08 12:52:32.168676 2019] [:error] [pid 15895:tid 139620746376960] Can't locate Kernel/System/Web/InterfaceInstaller.pm in @INC (you may need to install the Kernel::System::Web::InterfaceInstaller module) (@INC contains: /usr/sbin/../../Custom /usr/sbin/../../Kernel/cpan-lib /usr/sbin/../.. /opt/otrs/Custom /opt/otrs/Kernel/cpan-lib /opt/otrs/ /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.26.2 /usr/local/share/perl/5.26.2 /usr/lib/x86_64-linux-gnu/perl5/5.26 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.26 /usr/share/perl/5.26 /usr/local/lib/site_perl /etc/apache2) at /home/otrs/bin/cgi-bin/ installer.pl line 31.\nBEGIN failed--compilation aborted at /home/otrs/bin/cgi-bin/installer.pl line 31.\n otrs@~/bin$ ./otrs.CheckModules.pl http://otrs.checkmodules.pl/ o Apache::DBI......................ok (v1.12) o Apache2::Reload..................ok (v0.13) o Archive::Tar.....................ok (v2.24) o Archive::Zip.....................ok (v1.63) o Crypt::Eksblowfish::Bcrypt.......ok (v0.009) o Crypt::SSLeay....................ok (v0.73_06) o Date::Format.....................ok (v2.24) o DateTime.........................ok (v1.50) o DBI..............................ok (v1.641) o DBD::mysql.......................ok (v4.050) o DBD::ODBC........................ok (v1.59) o DBD::Oracle......................Not installed! (optional - Required to connect to a Oracle database.) o DBD::Pg..........................ok (v3.7.4) o Digest::SHA......................ok (v5.96) o Encode::HanExtra.................ok (v0.23) o IO::Socket::SSL..................ok (v2.060) o JSON::XS.........................ok (v3.04) o List::Util::XS...................ok (v1.46_02) o LWP::UserAgent...................ok (v6.26) o Mail::IMAPClient.................ok (v3.39) o IO::Socket::SSL................ok (v2.060) o Authen::SASL...................ok (v2.16) o Authen::NTLM...................ok (v1.09) o ModPerl::Util....................ok (v2.000010) o Net::DNS.........................ok (v1.17) o Net::LDAP........................ok (v0.65) o Template.........................ok (v2.27) o Template::Stash::XS..............ok (undef) o Text::CSV_XS.....................ok (v1.36) o Time::HiRes......................ok (v1.9741) o XML::LibXML......................ok (v2.0132) o XML::LibXSLT.....................ok (v1.96) o XML::Parser......................ok (v2.44) o YAML::XS.........................ok (v0.74) -- Regards, sneharajr Look before you leap and Think before you speak