Wrapper Error in "OVS." Please help

Hi!! I need your knowledge !!
I build a OVS... and functioned well.
But, i create a another RFC Model (for other functionality), and when I realice deployment, and execute the OVS in my WebDynpro , this error generated:
<i>java.lang.NullPointerException
at <b>com.sap.tc.webdynpro.progmodel.valuehelp.NodeCMIModelClassWrapper.<init>(NodeCMIModelClassWrapper.java:46)</i></b>
what is this error in Wrapper? Has someone has occurred him?
Help please!
Thanks...

Mauricio,
Seems that node element passed to constructor is null. Looks like you are using
WDValueServices.addOVSExtension
String providerName,
IWDAttributeInfo[] startupAttributes,
IWDNode queryInputNode,
IWDNode queryResultNode,
IWDOVSContextNotificationListener queryListener
and queryInputNode contains no element. try to add element to this node and test again.
Valery Silaev
EPAM Systems
http://www.NetWeaverTeam.com

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