When you attempt to view a list of managed virtual machines (VMs) in Windows Azure Pack 2013, you receive the following error:
An error occurred while retrieving the list of Virtual Machine Roles
Additionally, searching for virtual machines may return the following error:
Virtual Machine Role Name is not available
Also, an event similar to the following may be present in the Microsoft-WindowsAzurePack-MgmtSvc-TenantSite event log:
Log Name: Microsoft-WindowsAzurePack-MgmtSvc-TenantSite
EventID: 220
Level: Warning
Description:
"subscriptionId">{00000000-0000-0000-0000-000000000000}
System.AggregateException: One or more errors occurred. --->
System.NullReferenceException: Object reference not set to an instance of an object. at
Microsoft.WindowsAzure.Server.VM.TenantExtension.Controllers.VMController.
<<ListVMRoles>b__2a8>d__2ae.MoveNext() ---
End of stack trace from previous location where exception was thrown --- at
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at
Microsoft.WindowsAzure.Server.VM.TenantExtension.Controllers.VMController.<ListVMRoles>d__2b3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Microsoft.WindowsAzure.Server.VM.TenantExtension.Controllers.VMController.<ListVMsAndVMRoles>d__fa.MoveNext()
--- End of inner exception stack trace ---
---> (Inner Exception #0)
System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.WindowsAzure.Server.VM.TenantExtension.Controllers.VMController.<<ListVMRoles>b__2a8>d__2ae.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.WindowsAzure.Server.VM.TenantExtension.Controllers.VMController.<ListVMRoles>d__2b3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Microsoft.WindowsAzure.Server.VM.TenantExtension.Controllers.VMController.<ListVMsAndVMRoles>d__fa.MoveNext()
<---</Data>
These errors can occur if the resource provider's passwords are out of sync in the Windows Azure Pack database.
For all the details and a resolution, please see the following:
KB2983441 - "An error occurred while retrieving the list of Virtual Machine Roles" in Windows Azure Pack 2013 ( http://support.microsoft.com/kb/2983441 )
J.C. Hornbeck | Solution Asset PM | Microsoft GBS Management and Security Division
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