[Resolved] convert soapui xml project to the loadui one

1. trying to run loadui project from dos command line and got message "org.apache.xmlbeans.XmlException...The document is not a loadui-project@http://...document element mismatch got soapui-project@http://..."
2. Then I realize this xml project is soapui project. Is there any way to convert it into LoadUI xml project?

Thanks for any useful information
Larry