glassfish problem

Hi,
I have installed glassfish on my netbeans 6.8 and when I tred to run some java web application, it returned me an error:


GlassFish v3 Server cannot start. Port is occupied.

Any idea whats wrong ?

thanks

You have some other server running on the same port.
Go to tools-->server and check how many servers are installed. Check the port of other servers and if there are other servers using the same port, right click on server name and remove. However, servers will be in your system and you can add it to your netbeans ide anytime.