IWAB0014E Unexpected exception occurred: while exposing portal service as web service

Hi,

I am trying to expose the portal service as web service. But on clicking the portal interface,create -->new-->web service, and the web service creation wizard opens, on the next step, an error is encountered.

IWAB0014E Unexpected exception occurred.

      java.lang.IllegalArgumentException

      at org.eclipse.wst.server.core.internal.facets.FacetUtil.getRuntime(FacetUtil.java:89)

      at org.eclipse.jst.server.core.FacetUtil.getRuntime(FacetUtil.java:59)

      at org.eclipse.jst.ws.internal.consumption.command.common.CreateFacetedProjectCommand.setFacetRuntime(CreateFacetedProjectCommand.java:283)

      at org.eclipse.jst.ws.internal.consumption.command.common.CreateFacetedProjectCommand.getFacetsToAdd(CreateFacetedProjectCommand.java:219)

      at org.eclipse.jst.ws.internal.consumption.command.common.CreateFacetedProjectCommand.execute(CreateFacetedProjectCommand.java:115)

      at org.eclipse.jst.ws.internal.creation.ui.extension.PreServiceDevelopCommand.execute(PreServiceDevelopCommand.java:196)

      at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.runCommand(CommandFragmentEngine.java:419)

      at org.eclipse.wst.command.internal.env.core.fragment.CommandFragmentEngine.visitTop(CommandFragmentEngine.java:359).......

I am using NWDS 7.3 SP06 and NWDI SP09.

Can anyone please give any pointer or solution to resolve this.

Thanks

Ankur