Discovery process (End of data reached)

I am attempting to set up a web service using the Natural driver. After selecting the driver I am taken to the discovery form. I select "System", enter "SYSSOAEX" as the library and click on "Next>". This produces an error message" An error occurred during the discovery process (End of data reached) 100
After clicking on "Cancel" I get the following in the creation report:
Commencing Natural import
Nothing selected, no WebService created
This has worked in the past. What is wrong?
Donald
After clicking on "Cancel" I get the following in the creation report:
Commencing Natural import
Nothing selected, no WebService created
This has worked in the past. What is wrong?
Donald