title: Azure devops build pipeline with yaml file not working
body: <p>I have created a build-pipeline.yml file for my project, so that my application can be built automatically in azure devops. </p>
  
  <p>fistly I have created a pipeline with devops UI, that works very well. </p>
  
  <p>so I have copyed all yml from jobs, which I have created with UI. </p>
  
  <p>and then I have created a new Pipeline with this yml file and run this pipeline, but I got some problems at the beginning:</p>
  
  <pre><code>
  ##[warning]There was a failure in sending the provision message: Unexpected response code from remote provider InternalServerError
  ,##[warning]There was a failure in sending the provision message: Unexpected response code from remote provider InternalServerError
  ,##[warning]There was a failure in sending the provision message: Unexpected response code from remote provider InternalServerError
  ,##[error]Provisioning request delayed or failed to send 3 time(s). This is over the limit of 3 time(s).
  
  Pool: Azure Pipelines
  Started: Today at 10:07
  Duration: &lt;1s
  
  Job preparation parameters
  1 queue time variable used
  system.debug : false
  
  
  Report build status
  &lt;1s
  Set build status for commit e720d4.
  
  
  
  </code></pre>
  
  <p>my yaml file looks just like this: </p>
  
  <pre><code>pool:
    name: Azure Pipelines
  steps:
  - task: Docker@0
    displayName: 'build image'
    inputs:
      azureSubscription: 'TOOL'
      azureContainerRegistry: '{"loginServer":"abc.azurecr.io", "id" : "/subscriptions/a03e9b30-9b04-4e89-b366-117b3d6bf17e/resourceGroups/abcrg/providers/Microsoft.ContainerRegistry/registries/abcacr"}'
  
  - task: Docker@0
    displayName: 'push image'
    inputs:
      azureSubscription: 'RCTOOL'
      azureContainerRegistry: '{"loginServer":"abctoolacr.azurecr.io", "id" : "/subscriptions/a03e9b30-9b04-4ed5-b3898-117b3d6bf17e/resourceGroups/abc-acr-rg/providers/Microsoft.ContainerRegistry/registries/abctoolacr"}'
      action: 'Push an image'
  
  - task: HelmInstaller@0
    displayName: 'Install Helm '
  
  - task: HelmDeploy@0
    displayName: 'Package Helm chart'
    inputs:
      azureSubscription: 'RCTOOL'
      azureResourceGroup: 'abc-rctool-k8s-rg'
      kubernetesCluster: 'abc-rctool-k8s'
      command: package
      chartPath: config/helm/eqcockpit
  
  - task: PublishPipelineArtifact@1
  
  </code></pre>
  
  <p>so I have googled, but I have not found any useful solutions. may be you can help me.</p>