Method invocation failed because the interface does not contain a method named 'GetType'

[trlthiago]

SUMMARY

Hi, I am getting this error:

"Unhandled exception while executing module: Method invocation failed because [Microsoft.VirtualManager.Remoting.IVirtualManagerService] does not contain a method named 'GetType'."

I am executing a powershell script to create a VM on VMM.

  - name: Create VM via VMM
    ansible.windows.win_powershell:
      script: "{{ lookup('ansible.builtin.template', 'create-vm.ps1') }}"
    register: create_result

The script execute some cmdlets from virtualmachinemanager module and i think the following one rises the error

New-SCVirtualMachine -Name $vmName -VMConfiguration $virtualMachineConfiguration -Cloud $cloud -JobGroup $jobGroupId -StartAction "TurnOnVMIfRunningWhenVSStopped" -StopAction "SaveVM" -StartVM

ISSUE TYPE

• Bug Report

ANSIBLE VERSION

ansible [core 2.16.3]
  config file = None
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.12.3 (main, Sep 11 2024, 14:17:37) [GCC 13.2.0] (/usr/bin/python3)
  jinja version = 3.1.2
  libyaml = True

COLLECTION VERSION

community.general                        8.3.0
ansible.windows                             2.2.0
community.windows                      2.1.0

CONFIGURATION

$ansible-config dump --only-changed
CONFIG_FILE() = None

OS / ENVIRONMENT

$lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble
$uname -a
Linux 6.8.0-1015-azure

ACTUAL RESULTS

The full traceback is:
Method invocation failed because [Microsoft.VirtualManager.Remoting.IVirtualManagerService] does not contain a method named 'GetType'.
At line:383 char:39
+ ... rop.Name] = Convert-OutputObject -InputObject $prop.Value -Depth $chi ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Convert-OutputObject], RuntimeException
    + FullyQualifiedErrorId : MethodNotFound,Convert-OutputObject

ScriptStackTrace:
at Convert-OutputObject<Process>, <No file>: line 351
at Convert-OutputObject<Process>, <No file>: line 383
at Convert-OutputObject<Process>, <No file>: line 361
at <ScriptBlock>, <No file>: line 805

System.Management.Automation.RuntimeException: Method invocation failed because [Microsoft.VirtualManager.Remoting.IVirtualManagerService] does not contain a method named 'GetType'.
   at System.Management.Automation.ExceptionHandlingOps.CheckActionPreference(FunctionContext funcContext, Exception exception)
   at System.Management.Automation.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.Interpreter.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.LightLambda.RunVoid1[T0](T0 arg0)
   at System.Management.Automation.PSScriptCmdlet.RunClause(Action`1 clause, Object dollarUnderbar, Object inputToProcess)
   at System.Management.Automation.PSScriptCmdlet.DoProcessRecord()
   at System.Management.Automation.CommandProcessor.ProcessRecord()
fatal: [172.16.17.14]: FAILED! => {
    "changed": false,
    "msg": "Unhandled exception while executing module: Method invocation failed because [Microsoft.VirtualManager.Remoting.IVirtualManagerService] does not contain a method named 'GetType'."
}

[jborean93]

I don't have an environment setup to test the output object returned by New-SCVirtualMachine but I've hopefully fixed the issue by checking if GetType exists as a method on each object through #710. I don't fully know how an object doesn't have the GetType() method but hopefully that PR fixes this problem. It would be great if you could test it out to verify it solves your problem.