Hi, are there any modules listed in red below that message? It usually indicates that you are missing something in your system that Koha needs to work. How are you installing Koha? The packages should take care of getting all needed dependencies installed for you. Katrin Am 18.05.2016 um 15:57 schrieb regina kivuyo:

Some Perl modules are missing. Modules in red *must* be installed before you may continue. *koha version is 3.18* *ubuntu 12.04*