Unable to Add external Server Tomcat In Netbeans 7.1

Question

I am going to add Tomcat server in Netbeans 7.1 , it shows:

The specified Server Location (Catalina Home) folder is not valid.

Answer 1

In my case I needed to chown the tomcat directory -

    sudo chown -R username:username /opt/tomcat-8/

Because I had set the owner and group to tomcat. Alternately adding my user to the tomcat group works too.