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Conversion of virtual machine that has two or more disks fails in Virtual Machine Converter

Symptoms

When you use Microsoft Virtual Machine Converter (MVMC) v2.0 to convert a virtual machine that has two or more disks, the conversion process may fail with the following error:

System.InvalidOperationException: A task may only be disposed if it is in a completion state (RanToCompletion, Faulted or Canceled).

When you view the most recent MVMC log file in the user's %temp% folder in this situation, you find the following data:
05/07/2014 15:14:56 +02:00 [8] VERBOSE: Downloading VMware virtual disks from source virtual machine
05/07/2014 15:14:57 +02:00 [8] VERBOSE: Downloading device (/vm-1992-02-03/VirtualLsiLogicSASController0:0) disk-0.vmdk
05/07/2014 15:15:12 +02:00 [8] VERBOSE: Initializing (E:\MVMC\MVMC\0\disk-0.vhdx) with a size of 150323855360 with preallocate false.
05/07/2014 15:15:12 +02:00 [8] VERBOSE: End of initializing (E:\MVMC\MVMC\0\disk-0.vhdx).
05/07/2014 17:04:12 +02:00 [8] VERBOSE: Updating FAT/NTFS drive geometry.
05/07/2014 17:04:12 +02:00 [8] VERBOSE: Downloading device (/vm-1992-02-03/VirtualLsiLogicSASController0:1) disk-1.vmdk
05/07/2014 17:04:12 +02:00 [8] VERBOSE: Initializing (E:\MVMC\MVMC\0\disk-1.vhdx) with a size of 64424509440 with preallocate false.
05/07/2014 17:04:12 +02:00 [8] VERBOSE: End of initializing (E:\MVMC\MVMC\0\disk-1.vhdx).
05/07/2014 17:05:17 +02:00 [8] VERBOSE: System.InvalidOperationException: A task may only be disposed if it is in a completion state (RanToCompletion, Faulted or Canceled).
at System.Threading.Tasks.Task.Dispose(Boolean disposing)
at System.Threading.Tasks.Task.Dispose()
at Microsoft.Accelerators.Mvmc.Engine.ForVMware.ExportLease.GetFiles(IDownloadAdapter adapter, String host, DirectoryInfo dirInfo, TaskContext taskContext)
at Microsoft.Accelerators.Mvmc.Engine.ForVMware.VirtualMachine.DownloadFiles(IDownloadAdapter downloadAdapter, String toPath, TaskContext context)
 at Microsoft.Accelerators.Mvmc.Engine.ServiceLayer.Internal.MachineConversionService.ConvertToDrives(IMachineConversionRequest machineConversionRequest, IPostProgress& provisionHyperVPhase, IVirtualMachine& sourceVM, TaskContext taskContext)

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Cause

This issue may occur when you try to convert a VMWare virtual machine that has two or more disks (VMDK files). 

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Resolution

This issue is resolved in the latest version of MVMC.

To download version 2.1, go to the following Microsoft website: 

http://www.microsoft.com/en-us/download/details.aspx?id=42497
The Date Published value for the package should be 6/12/2014 or later.

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More Information

When you review the log files, you notice that the first disk is successfully converted, as follows: 

VERBOSE: Initializing (E:\MVMC\MVMC\0\disk-0.vhdx) with a size of 150323855360 with preallocate false.
VERBOSE: End of initializing (E:\MVMC\MVMC\0\disk-0.vhdx).
VERBOSE: Updating FAT/NTFS drive geometry.
When the problem that's discussed in the "Symptoms" section is encountered, the following entries are logged. Notice that "Updating FAT/NTFS drive geometry" is replaced by "System.InvalidOperationException":

VERBOSE: Initializing (E:\MVMC\MVMC\0\disk-1.vhdx) with a size of 64424509440 with preallocate false.
VERBOSE: End of initializing (E:\MVMC\MVMC\0\disk-1.vhdx).
VERBOSE: System.InvalidOperationException: A task may only be disposed if it is in a completion state (RanToCompletion, Faulted or Canceled).
at System.Threading.Tasks.Task.Dispose(Boolean disposing)

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Keywords: kbexpertiseadvanced, kbtshoot, kbsurveynew, kb

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Article Info
Article ID : 2971014
Revision : 1
Created on : 1/7/2017
Published on : 7/4/2014
Exists online : False
Views : 95