title: ARM on Azure DevOps: Could not find any file matching the template file pattern
body: <p>I'm trying to deploy simple ARM, but failing. What could be wrong?</p>
  
  <p>ARM File location in Git is ARMTemplates/CreateSQLServerARM/azuredeploy.json</p>
  
  <pre><code> //Example
   //https://docs.microsoft.com/en-us/azure/azure-resource-manager/templates/deployment-tutorial- 
   pipeline
  
  //ERROR
  ARM Service Conection deployment scope - Subscription
  Checking if the following resource group exists: KensTestRG.
  Resource group exists: true.
  Creating deployment parameters.
  ##[error]Error: Could not find any file matching the template file pattern
  Finishing: AzureResourceManagerTemplateDeployment
  
  //YML
  - task: AzureResourceManagerTemplateDeployment@3
    inputs:
      deploymentScope: 'Resource Group'
      azureResourceManagerConnection: 'AzureRmPipeline-conn'
      subscriptionId: '1111753a-501e-4e46-9aff-6120ed56333'
      action: 'Create Or Update Resource Group'
      resourceGroupName: 'KensTestRG'
      location: 'North Europe'
      templateLocation: 'Linked artifact'
      csmFile: '\ARMTemplates\CreateSQLServerARM\azuredeploy.json'
      deploymentMode: 'Incremental'
  </code></pre>