Cannot complete the install because one or more required items could not be found. Software being installed: m2e - slf4j over logback logging (Optional) 1.4.0.20130601-0317

 Help-->Install New Software

Installing Maven

After adding the below URL, that child details will be populated, then click Next and continue further.

If you are unable to install maven with below URL in eclipse.

Url: http://www.fuin.org/p2-repository/

Try the below one, Its worked for me.

http://download.jboss.org/jbosstools/updates/m2eclipse-wtp/