The error merely indicates that your logic has a reference ID for a file on the local fileSystem that does not, in fact, exist.
This can have any number of causes. From your question I gather you're using a consumed webservice to pull in data that also contains binaries.
Are you sure the error occurs in the webservice mapping, or can it also be your processing logic?
yes um pulling objects that associated with documents however some of the physical documents are missing and i am trying to get it to display the other that have documents
stack trace
Caused by: java.lang.RuntimeException: LocalFileSystemStore:: File does not exist for key: a73d2a1c-09fe-44fc-ab1e-7f6dd31dc581
at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.com$mendix$storage$localfilesystem$internal$LocalFileSystemStore$$getFileDocumentAsFile(LocalFileSystemStore.scala:153)
at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore$$anonfun$1.apply(LocalFileSystemStore.scala:132)
at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore$$anonfun$1.apply(LocalFileSystemStore.scala:131)
at scala.util.Try$.apply(Try.scala:191)
at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.retrieve(LocalFileSystemStore.scala:131)
at com.mendix.filedocumentprocessor.internal.FileDocumentProcessorImpl.getFileDocument(FileDocumentProcessorImpl.java:61)
at com.mendix.core.component.InternalCore.getFileDocumentContent(InternalCore.java:577)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeFileContents(ResultWriter.java:254)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeAttribute(ResultWriter.java:130)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeObject(ResultWriter.java:116)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeAssociation(ResultWriter.java:187)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeObject(ResultWriter.java:117)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeResult(ResultWriter.java:91)
at com.mendix.integration.webservices.publish.handling.ResultWriter.writeMicroflowResult(ResultWriter.java:67)
at com.mendix.integration.webservices.publish.handling.WebServiceCallBodyProcessor.executeMicroflow(WebServiceCallBodyProcessor.scala:84)
at com.mendix.integration.webservices.publish.handling.WebServiceActionMonitor$$anonfun$run$1.apply$mcV$sp(WebServiceActionMonitor.scala:18)
at com.mendix.integration.webservices.publish.handling.WebServiceActionMonitor$$anonfun$run$1.apply(WebServiceActionMonitor.scala:16)
at com.mendix.integration.webservices.publish.handling.WebServiceActionMonitor$$anonfun$run$1.apply(WebServiceActionMonitor.scala:16)
at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2$$anon$1.execute(ActionDispatching.scala:145)
at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32)
at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2.apply(ActionDispatching.scala:147)
at scala.util.Try$.apply(Try.scala:191)
at com.mendix.core.session.Worker$$anonfun$receive$3.applyOrElse(ActionDispatching.scala:141)
at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
at com.mendix.core.session.Worker.aroundReceive(ActionDispatching.scala:137)