Error "Address already in use: JVM_Bind" when running Hello GWT app in NetBeans 7.3 Beta 2

[otosaat]

I followed the instruction from the following link: 
http://netbeans.org/kb/docs/web/quickstart-webapps-gwt.html#creating 
and got the following error when I run the project: 
[gae:run] 
Monitor failed to start 
java.net.BindException: Address already in use: JVM_Bind 
at java.net.DualStackPlainSocketImpl.bind0(Native Method) 

I've searched for a solution on the web but could not find one. Would someone please give me some pointer on this? Also, is there a way for me to configure the NetBeans IDE to use a dynamic port everytme I run a web project? 

Thank you in advance for your help. 

-Otosaat

[otosaat]

I went back and read similar posts and realized that they all indicated a specific port number. The error in my run does not. I went back and reviewed the steps in the instruction, http://netbeans.org/kb/docs/web/quickstart-webapps-gwt.html#creating, again, I found one mistake: Instead of choosing "Google Web Toolkit" from the Framework list, I chose it from the Project dialog box. That was the problem. I re-created another Hello project and it works now.