Eclipse Add Tomcat 7 blank server name "could not enter server name"

What I do before is I deleted a tomcat 7 servers from Eclipse and I were trying to reinstall Tomcat 7. But it doesn ' t allow me to type anything in that TextBox and I cannot proceed to the "Next" button. My environment is Ubuntu Linux and Eclipse for Java EE.



Here are the workaround that worked for me:

Close Eclipse
In {Workspace-directory}/.metadata/.plugins/org.eclipse.core.runtime/.settingsdelete The following the other files:
Org.eclipse.wst.server.core.prefs
Org.eclipse.jst.server.tomcat.core.prefs
Restart Eclipse

Eclipse Add Tomcat 7 blank server name "could not enter server name"