Missing parameter/body definitions for Request in Rest WS

Hi,

I am trying to add several REST services to SoapUI Pro 4.6.3 and I get this error in the form tab

Missing parameter/body definitions for Request

I can add some of the REST methods, but others I am not able to load them.

I have no problems when adding this 2 methods
http://www.itserver.es/ITServer/rest/mapset/lang/es/getTerminologyMapping/sourceTerminologyName/SNOMED%20CT?targetTerminologies=ICD-9-CM&codes=76581006

http://www.itserver.es/ITServer/rest/mapset/lang/en/getTerminologyMapping/sourceTerminologyName/SNOMED%20CT?targetTerminologies=LOINC&codes=67079006

But I am not able to load this other two

http://www.itserver.es/ITServer/rest/snomedcore/lang/en/getSctDescriptionById/817317017

http://www.itserver.es/ITServer/rest/snomedcore/getSctConceptById/127496003

Can someone help me in identifying what is going on and what should I do.

Help is much appreciated.

Regards

Alejandro Mauro