Error when importing single contract

Got the following error when importing a contract:

java.io.IOException: WSDLException (at /wsdl:definitions/wsdl:types/xsd:schema): faultCode=OTHER_ERROR: Unable to locate with a locator the schema referenced at ‘…/…/…/…/…/Schemas/internal/wsdlheaders/HeaderSchema.xsd’ relative to document base ‘file:/C:/Documents and Settings/All Users/Application Data/Software AG/Tomcat/v5.5/work/Catalina/localhost/PluggableUI/125631523916751179269936147577.dat’ (severe problem locating wsdl: java.io.IOException: Server returned HTTP response code: 401 for URL: http://GWA-SR-SOARR-10.repository.local:53305/CentraSite/CentraSite/ino:dav/ino:dav/projects/WSDL/www.michaelpage.com/wsdlheaders/Headerv1.0/HeaderSchema.xsd)
at com.centrasite.jaxr.webservice.WebServiceAnalyzer.getWSDLDefinition(WebServiceAnalyzer.java:405)
at com.centrasite.jaxr.webservice.WebServiceAnalyzer.(WebServiceAnalyzer.java:110)
at com.centrasite.jaxr.webservice.WebServiceRegistrator.(WebServiceRegistrator.java:467)
at com.centrasite.control.logged.action.LoggedWebserviceImport.run(LoggedWebserviceImport.java:86)
at com.centrasite.control.logged.action.LoggedExecutor.run(LoggedExecutor.java:85)
at com.centrasite.control.logged.action.LoggedExecutor.execute(LoggedExecutor.java:57)
at com.centrasite.control.adapters.WebServiceImportAdapter$RegisterWebService.register(WebServiceImportAdapter.java:751)
at com.centrasite.control.adapters.AbstractFileImport.registerAttempt(AbstractFileImport.java:202)
at com.centrasite.control.adapters.AbstractFileImport.doImport(AbstractFileImport.java:139)
at com.centrasite.control.adapters.WebServiceImportAdapter.callFinish(WebServiceImportAdapter.java:499)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.softwareag.cis.server.InteractionModel.invokeMethodInternally(Unknown Source)
at com.softwareag.cis.server.InteractionModel.invokeMethod(Unknown Source)
at com.softwareag.cis.server.XMLProcessor.processXML(Unknown Source)
at com.softwareag.cis.server.Connector.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

Rashed,

can you post your WSDL including all referenced artifacts here?
If not - please drop it to me as e-mail at daniel.adelhardt@softwareag.com

Thanks
Daniel