You receive a “duplicate UUID” error message when you compile a COM-based program for Windows HPC Server 2008
You build a COM-based program for a Windows HPC Server 2008 platform. You use both the Microsoft.Hpc.Scheduler and Microsoft.Hpc.Scheduler.Properties enumerations in your program. However, when you try to compile the program, you receive an error message that resembles the following:
.\Microsoft.Hpc.Scheduler.IDL(973) : error MIDL2270 : duplicate UUID. Same as : SchedulerCoreState [ Type 'NodeState' ( Parameter 'pRetVal' ) ]
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB961776.