I created a new server in eclipse but then I deleted it for some reason and now I couldn't create a new one. I got Apache Tomcat 7 but when I select Tomcat v7 server from list, Server name field is not editable.Also buttons are not working(finish,next).
Close eclipse and delete these two files and start eclipse. It worked for me.
cd ~/eclipse_workspace/.metadata/.plugins/org.eclipse.core.runtime/.settings/
rm org.eclipse.jst.server.tomcat.core.prefs
rm org.eclipse.wst.server.core.prefs
If there are any more errors coming up refer to this blogpost or Eclipse 4.2 (Juno) 'Cannot create a server using the selected type' in Tomcat 7
Similar question :Eclipse add Tomcat 7 blank server name
If you look at the workspace in the Navigator View (or in Windows Explorer) you see a project/folder called 'Servers'. It contains your server configurations. Empty that folder and recreate your Tomcat server.
I have solved it, just correct the user rights, for example in Ubuntu with the command:
sudo chown -R yourname:yourgroup /opt/apache-tomcat-8*
