Jsp page does not work with orbeon (even demo jsp page) error: Fatal error: Content is not allowed in prolog

i'm trying to use jsp with orbeon, but even jsp example demo with orbeon shows an fetal error. i post the same problem in ops-user. Please help some one ho开发者_如何学Gow to fix the error and run jsp with orbon.

Could you please provide more information about the issue? I just checked, and an example like Flickr Search works fine with the latest builds. We might be able to help if you update your question with information about the version of Orbeon Forms you're using, the URL you're going to, and the error you're getting.