Build Error in tutorial TutWD_Popup

Hi,

after downloading the tutorial TutWD_Popup from the SDN Network homepage and after rebuiding the project i have got following error messages:

Kind Status Priority Description Resource In Folder Location

Error Missing required library: 'C:Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_JTECHS/DCs/sap.com/webservices/_comp/gen/default/public/default/lib/java/jaxm.jar'. TutWD_Popup Build path

Kind Status Priority Description Resource In Folder Location

Error The project was not built due to classpath errors (incomplete or involved in cycle). TutWD_Popup

How can i get rid from these messages.

Please help!

Best regards,

Nada Moalla