SOLVED The problems was that I mixed GWT-EXT with GXT, so the solution was remove GXT library and now works perfect
-- Guillermo Sánchez -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
