Description:
The Query/Query Iterator works in BusinessStudio, but after deployed in the TEA, it throws a Schema validation error.

Symptoms:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
   <soapenv:Body>
      <soapenv:Fault>
         <faultcode>soapenv:Server</faultcode>
         <faultstring><![CDATA[{http://tns.tibco.com/bw/fault}ActivityOutputValidationFault: com.tibco.bx.core.faults.BxException: Activity output data validation error. The output data from activity [QueryAppValue] in process [TFS.UtilityServices.XREF.XREFValueLookUp], module [TFSXREF] does not conform to the activity output schema. cvc-complex-type.2.4: Unexpected end of content in element '{http://tns.tibco.com/bw/activity/activespace/xsd/+TFS.TIBCOComponents.SharedConnections.AS.XREFMetaspace/XREF_SPACE/XREFSpaceConn+SnapshotIterator-output}ActivityOutput'.   Schema=
schema-element({http://tns.tibco.com/bw/activity/activespace/xsd/+TFS.TIBCOComponents.SharedConnections.AS.XREFMetaspace/XREF_SPACE/XREFSpaceConn+SnapshotIterator-output}ActivityOutput)  {http://tns.tibco.com/bw/activity/activespace/xsd/+TFS.TIBCOComponents.SharedConnections.AS.XREFMetaspace/XREF_SPACE/XREFSpaceConn+SnapshotIterator-output}ActivityOutput
Sequence
schema-element(Tuple)  {http://tns.tibco.com/bw/activity/activespace/xsd/+TFS.TIBCOComponents.SharedConnections.AS.XREFMetaspace/XREF_SPACE/XREFSpaceConn+SnapshotIterator-output}Tuple
Sequence
schema-element(ENTITY)  {http://www.w3.org/2001/XMLSchema}string
schema-element(APPNAME)  {http://www.w3.org/2001/XMLSchema}string
schema-element(APPVALUE)  {http://www.w3.org/2001/XMLSchema}string
schema-element(COMMONVALUE)  {http://www.w3.org/2001/XMLSchema}string
Sequence
schema-element(IsLast)  {http://www.w3.org/2001/XMLSchema}boolean
schema-element(IsPartialResult)  {http://www.w3.org/2001/XMLSchema}boolean
schema-element(TotalCount)  {http://www.w3.org/2001/XMLSchema}long
schema-element(RemainingCount)  {http://www.w3.org/2001/XMLSchema}long
Sequence
Data=<ns0:ActivityOutput xmlns:ns0="http://tns.tibco.com/bw/activity/activespace/xsd/+TFS.TIBCOComponents.SharedConnections.AS.XREFMetaspace/XREF_SPACE/XREFSpaceConn+SnapshotIterator-output"><Tuple><ENTITY>COUNTRY</ENTITY><APPNAME>UCM</APPNAME><APPVALUE>CA</APPVALUE><COMMONVALUE>CALIFORNIA</COMMONVALUE></Tuple><IsLast>false</IsLast></ns0:ActivityOutput>]]></faultstring>
         <detail/>
      </soapenv:Fault>
   </soapenv:Body>
</soapenv:Envelope>
Cause:
The Plugin version in the TEA server does not match the Plugin version that generated the EAR file.