I am working on getting Monarch installed on a server to manage Nagios file. Part of the setup includes installing a bunch of items using Perl’s CPAN. One of the packages I needed to install was called “XML::LibXML::Common” but it failed with an error. The error was overcome on CentOS by installing libxml2-devel using yum. Below are details regarding the error, the yum command to resolve the issue, and the end of a successful install of the initial package.