Start-AzVM：当 运行 Azure Runbook 时无法绑定参数 'DefaultProfile'

Question

我正在处理这个 official tutorial from MS Azure team to run a PowerShell Workflow runbook to start a VM. But when I start the following runbook (from step 6 of the tutorial)，我收到如下所示的错误。 问题：我可能遗漏了什么，我们该如何解决这个问题？

备注: Start-AzVM is from Az.Compute module我已经导入了

操作手册代码:

workflow MyFirstRunbook-Workflow
{
# Ensures that you do not inherit an AzContext in your runbook
Disable-AzContextAutosave –Scope Process

$Conn = Get-AutomationConnection -Name AzureRunAsConnection
Connect-AzAccount -ServicePrincipal -Tenant $Conn.TenantID -ApplicationId $Conn.ApplicationID -CertificateThumbprint $Conn.CertificateThumbprint

$AzureContext = Get-AzSubscription -SubscriptionId $Conn.SubscriptionID

Start-AzVM -Name 'vm-cs-web01' -ResourceGroupName 'rg-cs-ansible1' -AzContext $AzureContext
}

错误:

Start-AzVM : Cannot bind parameter 'DefaultProfile'. Cannot convert the "a76c7e8f-210d-45e5-8f5e-525015b1c881" value of 
type "Deserialized.Microsoft.Azure.Commands.Profile.Models.PSAzureSubscription" to type 
"Microsoft.Azure.Commands.Common.Authentication.Abstractions.Core.IAzureContextContainer".
At MyFirstRunbook-Workflow:11 char:11
+ 
    + CategoryInfo          : InvalidArgument: (:) [Start-AzVM], ParameterBindingException
    + FullyQualifiedErrorId : CannotConvertArgumentNoMessage,Microsoft.Azure.Commands.Compute.StartAzureVMCommand

Answer 1

看起来是文档中的错误，在这种情况下，应该使用 Set-AzContext 来设置订阅而不是使用 Get-AzSubscription 来获取订阅，更改如下命令，它会很好用。

workflow MyFirstRunbook-Workflow
{
# Ensures that you do not inherit an AzContext in your runbook
Disable-AzContextAutosave –Scope Process

$Conn = Get-AutomationConnection -Name AzureRunAsConnection
Connect-AzAccount -ServicePrincipal -Tenant $Conn.TenantID -ApplicationId $Conn.ApplicationID -CertificateThumbprint $Conn.CertificateThumbprint

$AzureContext = Set-AzContext -SubscriptionId $Conn.SubscriptionID

Start-AzVM -Name 'vm-cs-web01' -ResourceGroupName 'rg-cs-ansible1' -AzContext $AzureContext
}