tomcat 7 installation on ubuntu 12.04LTS
tomcat, ubuntu
Solution
Apparently you need to remove `tomcat6-common` before installing tomcat7 due to some conflict.
See https://askubuntu.com/questions/173981/installing-tomcat-7-on-ubuntu-server-12-04.
Problem
I recently upgraded to Ubuntu 12.04LTS and installing Tomcat 7 but got following errors: ``` root@me:/# sudo apt-get install tomcat7 tomcat7-docs tomcat7-examples tomcat7-admin -y Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: tomcat7 : Depends: tomcat7-common (>= 7.0.26-1ubuntu1.1) but it is not going to be installed tomcat7-admin : Depends: tomcat7-common (>= 7.0.26-1ubuntu1.1) but it is not going to be installed tomcat7-docs : Depends: tomcat7-common (>= 7.0.26-1ubuntu1.1) but it is not going to be installed tomcat7-examples : Depends: tomcat7-common (>= 7.0.26-1ubuntu1.1) but it is not going to be installed E: Unable to correct problems, you have held broken packages. ``` Please help me to solve this problem.