Azure Runbook Error, AzureRmStorageAccountKey Cannot Index into null array

Question

I am trying to run this command within an Azure Run book

(Get-AzureRmStorageAccountKey -Name $defaultStorageAccountName -ResourceGroupName $defaultResourceGroupName).Value[0]

It runs fine on my local machine and I can see the Storage Account Key. However, when I run the same command in Azure Runbook it throws the following error

Cannot index into a null array

If I just run Get-AzureRmStorageAccountKey -Name $defaultStorageAccountName -ResourceGroupName $defaultResourceGroupName in the Azure Runbook, it runs fine and I can see the Keys. It is just when I am selecting an element from an Array that it fails and throws an error.

The PowerShell version is 5 on my local machine and on Azure Runbook.

Update:

My issue was resolved after updating the Modules from the Gallery in my automation account.

try doing get-member -inputobject (Get-AzureRmStorageAccountKey -Name $defaultStorageAccountName -ResourceGroupName $defaultResourceGroupName).Value and post the result — 4c74356b41
I have run the command you suggested and it is throwing this error get-member : You must specify an object for the Get-Member cmdlet — jane
well, there's no property named value try doing get-member -inputobject (Get-AzureRmStorageAccountKey -Name $defaultStorageAccountName -ResourceGroupName $defaultResourceGroupName) and see all the properties that exist — 4c74356b41
the output i get is Equals Method bool Equals(System.Object obj) tem.Object obj) GetHashCode Method int GetHashCode() GetType Method type GetType() ToString Method string ToString() Key1 Property string Key1 {get;set;} Key2 Property string Key2 {get;set;} — jane

Shui shengbao Shui shengbao · Accepted Answer · 2017-06-07T02:30:51

According to your description, I test your cmdlets in my runbook, I could get storage key.

You could use the following commands to login your subscriptions.

Write-Verbose "Get connection asset: $ConnectionAssetName" -Verbose
$connectionName = Get-AutomationConnection -Name "AzureRunAsConnection"
$AzureCredentialAssetName = "AzureRunAsConnection"
try
{
    # Get the connection "AzureRunAsConnection "
    $servicePrincipalConnection=Get-AutomationConnection -Name $AzureCredentialAssetName        

    "Logging in to Azure..."
    Add-AzureRmAccount `
        -ServicePrincipal `
        -TenantId $servicePrincipalConnection.TenantId `
        -ApplicationId $servicePrincipalConnection.ApplicationId `
        -CertificateThumbprint $servicePrincipalConnection.CertificateThumbprint 
}
catch {
    if (!$servicePrincipalConnection)
    {
        $ErrorMessage = "Connection $connectionName not found."
        throw $ErrorMessage
    } else{
        Write-Error -Message $_.Exception
        throw $_.Exception
    }
}

$key=(Get-AzureRmStorageAccountKey -Name <storage account name> -ResourceGroupName <resource group name>).Value[0]
"The storage account key is $key"

More information please refer to this link. Update

You need update Azure Storage account module version in automation account, then you could solve this issue.

Azure Runbook Error, AzureRmStorageAccountKey Cannot Index into null array

1 Answers