Problem with Dojo

Hello,

I made a basic tests using dojo and with Spring MVC and Spring Web Flow and is working normally (as expected) when not using the Spring's tags.

Based on what I've read for use the Spring's tags it must use the Spring Javascript Decorations but I am getting the following errors using firefox and firebug:

1. declare Spring.ElementDecoration: mixin #0 is unknown. Did you use dojo.require to pull it in?

2. Spring.ElementDecoration is not a constructor

I am attaching my JSP. How I cant solve those error messages?

I hope someone can help me.

Thanks and regards,