I have a very similar problem to what another poster had experienced regarding dependencies. Here is what yum reports (Trying to install package tomcat on Fedora Core 2) Resolving dependencies ....Package commons-beanutils needs lib-org-apache-commons-collections-2.1.so, this is not available. Package commons-digester needs lib-org-apache-commons-collections-2.1.so, this is not available. [root@ganga]# locate lib-org-apache-commons-collections-2.1.so /usr/lib/lib-org-apache-commons-collections-2.1.so [root@ganga]# rpm -qf /usr/lib/lib-org-apache-commons-collections-2.1.so commons-collections-2.1-12 So obviously rpmdb is aware that commons-collection is already installed. Any clue of what can be going wrong ? BK