Agentless protection fails with the error "An item with the same key has already been added" for a vCenter server (4040802)

ERROR 2017-05-28T18:49:16 [4910] - Replay.Common.Implementation.Virtualization.VSphereApi.EsxServer ()

An item with the same key has already been added.

System.ArgumentException depth 0: An item with the same key has already been added. (0x80070057)

at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +0x10 6000321

at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +0x0 60037a0

at Replay.Common.Implementation.Virtualization.VSphereApi.EsxVirtualMachine.SetExtraConfig(IEnumerable`1 extraConfig) +0x36 6001d54

at Replay.Common.Implementation.Virtualization.VSphereApi.EsxObjectConverter.ToEsxObject(ObjectContent content) +0x35 6001c43

at Replay.Common.Implementation.Virtualization.VSphereApi.EsxServer.RebuildEsxObjectsTree(IEnumerable`1 objects) +0x1b 6001cbd

DEBUG 2017-05-28T21:21:22 [181] - Replay.Common.Implementation.Virtualization.VSphereApi.EsxVirtualMachine ()

Extra configuration for key vmware.tools.requiredversion - old value 8194, new value 8194, id vm-730

ERROR 2017-05-28T21:21:22 [181] - Replay.Common.Implementation.Virtualization.VSphereApi.EsxServer ()

Configuration contains duplicates

System.InvalidOperationException depth 0: Configuration contains duplicates (0x80131509)

at Replay.Common.Implementation.Virtualization.VSphereApi.EsxVirtualMachine.SetExtraConfig(IEnumerable`1 extraConfig) +0xa2 6000fe8

at Replay.Common.Implementation.Virtualization.VSphereApi.EsxObjectConverter.ToEsxObject(ObjectContent content) +0x35 6000f1a

at Replay.Common.Implementation.Virtualization.VSphereApi.EsxServer.RebuildEsxObjectsTree(IEnumerable`1 objects) +0x1b 6000f6b

This issue is resolved in Rapid Recovery 6.2. The installers for the most recent build of Rapid Recovery can be found @ Rapid Recovery - Download Software.