I don't know how, but in some way I've got both jsf verions, Sun and MyFaces, in my classpath. I'm working on a project where I need the tomahawk dataTable newspaperColumns function. Because of that I needed to use the myfaces implementation of jsf. I removed the other librarys, but it seems like something has not been deleted. I get the message that
And when I try to open the page where I use newspapercolumns I get this error:
Is there an connection between this problems? And how can I solve them?