hi,
There are 2 possibilities for this message:
1. The browser you are using is not supporting specific server tags that are included the jsp pages (Google Chrome and Firefox Mozilla don't support the tags and therefore will not work for File upload. These browsers can be used to all other operations though.)
2. You are uploading the file from a networked computer and the Tomcat server is located on another machine. Keeping the application performance in mind, file upload is designed to work on local rather than remote machine.
Would you mind trying to upload the file using IE?
Thanks
Rusk