"No Exports were found that match the constraint: ContractName ZyLAB.EDiscovery.Processors.Interface.ICollector"

SYMPTOMS

While running a collection you observe following error on the performer File System Collector: No Exports were found that match the constraint: ContractName ZyLAB.EDiscovery.Processors.Interface.ICollector

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2014-10-03 15:39:31,980 NODE NAME [1][4968] ERROR ZyLAB.EDiscovery.ProcessingService.Common.Collection.ExecuteCollector - Error when collecting
System.ComponentModel.Composition.ImportCardinalityMismatchException: No exports were found that match the constraint:
 ContractName ZyLAB.EDiscovery.Processors.Interface.ICollector
 RequiredTypeIdentity ZyLAB.EDiscovery.Processors.Interface.ICollector
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExports(ImportDefinition definition, AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportsCore(Type type, Type metadataViewType, String contractName, ImportCardinality cardinality)
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValueCore[T](String contractName, ImportCardinality cardinality)
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValue[T](String contractName)
   at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValue[T]()
   at ZyLAB.EDiscovery.ProcessingService.Common.MEF.MefPerformerImporter.PerformerFactory.Create[TPerformer]()
   at ZyLAB.EDiscovery.ProcessingService.Common.MEF.PerformerFactory.CreatePerformer[TPerformer](PerformerDetails performerDetails)
   at ZyLAB.EDiscovery.ProcessingService.Common.Collection.ExecuteCollector.GetCollector()
   at ZyLAB.EDiscovery.ProcessingService.Common.Collection.ExecuteCollector.Execute()

CAUSE

The source of the error is because the processing nodes can not find a file. All nodes must be able to reach this site. However, a problem can occur if Legal Processing is set to use a local path in the “Shared Folder Path” setting. This path needs to be UNC\Share path in a cluster because all nodes will use this value and services that use this path cannot access drives mapped in user settings.

RESOLUTION

In Legal Processing go to Global Settings.

In the Shared Storage Location section, specify a UNC path that is accessible for all nodes.

APPLIES TO

3.6