Error in GWT(web application project)?

i created one web application project.I try to run the project but it shows the following output.How 开发者_如何转开发to solve this?

There is a new version of the SDK available.

Latest SDK: Release: 1.3.1 Timestamp: Tue Feb 09 04:30:41 IST 2010 API versions: [1.0]

Your SDK: Release: 1.3.0 Timestamp: Tue Dec 15 00:17:37 IST 2009 API versions: [1.0]

Please visit http://code.google.com/appengine for the latest SDK.

The server is running at http://localhost:8888/

It probably means that port 8888 is already in use by some other service (Java server?) - if you're using Google Eclipse Plugin, you can specify the port in the project settings, otherwise use the --port parameter.

You may have already started a server running your GWT application (or just any other server), which you will have to stop before you can start another one. Or do like Igor said and start your GWT server on another port.