Incompatible Web Part markup detected. Use *.dwp web part XML instead of *.webpart web part xml. en Text text/html http://sharepointkb.org/Incompatible_Web_Part_markup_detected._Use_%2A.dwp_web_part_XML_instead_of_%2A.webpart_web_part_xml. 2009-02-10 Alex Angas Anonymous user(s) of SharePoint Knowledge Base