Unable to connect to storage account inside AzureFileCopy@2-task of Azure DevOps Pipelines

Question

Hello,

I'm using the following azure-pipelines.yml-configuration to attempt to copy files located inside a GitHub repository to a blob inside an Azure storage account using Azure DevOps Pipelines remote agents.

The current configuration is as follows:

trigger:
- master

pool:
  vmImage: 'windows-2019'

steps:
- task: AzureFileCopy@2
  inputs:
    sourcePath: '$(Build.Repository.LocalPath)\\sqlBackup'
    azureSubscription: 'heatbeat-devops - Service Endpoint'
    resourceGroup: heatbeat-devops-development-reset
    destination: azureBlob
    storage: heatbeatdevopsdevdbreset
    containerName: resetscripts

I'll receive the following warning in the pre-job step:

##[section]Starting: AzureFileCopy
==============================================================================
Task         : Azure File Copy
Description  : Copy files to Azure blob or VM(s)
Version      : 2.1.5
Author       : Microsoft Corporation
Help         : [More Information](https://aka.ms/azurefilecopyreadme)
==============================================================================
##[warning]Can\'t find loc string for key: StorageAccountDoesNotExist
Unable to fetch storage account key. Error: '{0}' Error: StorageAccountDoesNotExist heatbeatdevopsdevdbreset
    at StorageAccounts.<anonymous> (d:\a\_tasks\AzureFileCopy_eb72cb01-a7e5-427b-a8a1-1b31ccac8a43\2.1.5\node_modules\azure-arm-rest\azure-arm-storage.js:164:23)
    at next (native)
    at fulfilled (d:\a\_tasks\AzureFileCopy_eb72cb01-a7e5-427b-a8a1-1b31ccac8a43\2.1.5\node_modules\azure-arm-rest\azure-arm-storage.js:4:58)
    at process._tickCallback (internal/process/next_tick.js:109:7)
##[section]Finishing: AzureFileCopy

and the following error inside the job itself:

##[section]Starting: AzureFileCopy
==============================================================================
Task         : Azure File Copy
Description  : Copy files to Azure blob or VM(s)
Version      : 2.1.5
Author       : Microsoft Corporation
Help         : [More Information](https://aka.ms/azurefilecopyreadme)
==============================================================================
##[command]Import-Module -Name C:\Program Files\WindowsPowerShell\Modules\AzureRM\2.1.0\AzureRM.psd1 -Global
##[warning]The names of some imported commands from the module 'AzureRM.Websites' include unapproved verbs that might make them less discoverable. To find the commands with unapproved verbs, run the Import-Module command again with the Verbose parameter. For a list of approved verbs, type Get-Verb.
##[command]Import-Module -Name C:\Program Files\WindowsPowerShell\Modules\AzureRM.Profile\2.1.0\AzureRM.Profile.psm1 -Global
##[command]Add-AzureRMAccount -ServicePrincipal -Tenant *** -Credential System.Management.Automation.PSCredential -EnvironmentName AzureCloud @processScope
##[command] Select-AzureRMSubscription -SubscriptionId *** -TenantId ***
##[error]Storage account: heatbeatdevopsdevdbreset not found. The selected service connection 'Service Principal' supports storage accounts of Azure Resource Manager type only.
##[section]Finishing: AzureFileCopy

##[error]Storage account: heatbeatdevopsdevdbreset not found. The selected service connection 'Service Principal' supports storage accounts of Azure Resource Manager type only.

Looking at the official documentation for this task ( https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/deploy/azure-file-copy?view=azure-devops#yaml-snippet ), all required parameters should be filled out correctly.

With the help of a chat support agent, I was able to confirm, that the storage account ín question ( heatbeatdevopsdevdbreset ) is an ARM-deployed storage account and not a classic storage account which referred me to this forum.

If you additional information is required, let me know. Any help on this matter would be appreciated!