Prepare-Release fails: The variable '$devops_pat' cannot be retrieved because it has not been set.

[pakrym]

D:\github\azure\net [master ≡]> .\eng\common\scripts\Prepare-Release.ps1 Microsoft.Azure.WebJobs.Extensions.EventHubs -ServiceDirectory eventhub
Source directory [ eventhub ]

Assuming release is in February with release date 02/09/2021
Input the new version, or press Enter to use use current project version '5.0.0-beta.1':
Current Version: 5.0.0-beta.1
New Version: 5.0.0-beta.1
Copying data from latest matching [4426] with version 4.2
Creating a release work item for a package release with the following properties:
  Lanuage: .NET
  Version: 5.0
  Package: Microsoft.Azure.WebJobs.Extensions.EventHubs
  AssignedTo: jong@microsoft.com
  PackageDisplayName: WebJobs Extensions - Event Hubs
  ServiceName: WebJobs
  PackageType: client
[7164].NET - Microsoft.Azure.WebJobs.Extensions.EventHubs(5.0) - Created
Marking item [7164].NET - WebJobs Extensions - Event Hubs - 5.0 as 'In Release' for 'Beta'
[7164].NET - Microsoft.Azure.WebJobs.Extensions.EventHubs(5.0) - Updating versions 5.0.0-beta.1
InvalidOperation: D:\github\azure\net\eng\common\scripts\Helpers\DevOps-WorkItem-Helpers.ps1:802
Line |
 802 |    if ($devops_pat)
     |        ~~~~~~~~~~~
     | The variable '$devops_pat' cannot be retrieved because it has not been set.

Invoke-RestMethod: D:\github\azure\net\eng\common\scripts\Helpers\DevOps-WorkItem-Helpers.ps1:813
Line |
 813 |    $response = Invoke-RestMethod -Method PATCH `
     |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     | {"$id":"1","innerException":null,"message":"TF400813: The user '' is not authorized to access this
     | resource.","typeName":"Microsoft.TeamFoundation.Framework.Server.UnauthorizedRequestException,
     | Microsoft.TeamFoundation.Framework.Server","typeKey":"UnauthorizedRequestException","errorCode":0,"eventId":3000}

cc @weshaggard @chidozieononiwu

[weshaggard]

Thanks for reporting @pakrym I'll investigate, you can work around it by setting $devops_pat = "".