Misleading Error Message when AccessToken is expired

[reecebradley]

The task reported an error message (I put [redacted] where appropriate):

Entering MD2WP.CLI.exe.
MDWWPClient::ctor
  BaseUrl = [redacted]
  UserName = [redacted]
  Password = ********
  Account URL = [redacted]
  Project = [redacted]
  RepoName = Portal
  Branch = master
  AccessToken = ********
  MetadataFilename = [redacted]\_md2wp.json
  EmbedExternalImages = False
  PublishAsCommitter = True
  ProcessSubfolders = True
  UseFolderNameAsCategory = False
  UseFolderNameAsTag = False
  PublishNewPostsAsDraft = False
  TrackPostIdInFilename = True
  AddEditLink = True
  EditLinkText = Edit this Page
  editLinkStyle = background-color: #2E5481; color: #FFFFFF; padding: 5px 10px; text-decoration: none; border-radius: 5px; font-size: 8pt;
Loading metadata file...
Retrieving file contents for '[redacted]\_md2wp.json'
ERROR: Unexpected character encountered while parsing value: <. Path '', line 0, position 0.
##[error]System.Management.Automation.RemoteException
##[debug]Processed: ##vso[task.logissue type=error;]System.Management.Automation.RemoteException
##[error]System.Management.Automation.RemoteException: Unhandled Exception: 
##[debug]Processed: ##vso[task.logissue type=error;]System.Management.Automation.RemoteException: Unhandled Exception: 
##[error]System.Management.Automation.RemoteException: Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: <. Path '', line 0, position 0.
##[debug]Processed: ##vso[task.logissue type=error;]System.Management.Automation.RemoteException: Newtonsoft.Json.JsonReaderException: Unexpected character encountered while parsing value: <. Path '', line 0, position 0.
   at Newtonsoft.Json.JsonTextReader.ParseValue()
   at Newtonsoft.Json.JsonTextReader.Read()
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType(JsonReader reader, JsonContract contract, Boolean hasConverter)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
   at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
   at MoonspaceLabs.Shared.BusinessLogic.MD2WPClient.LoadMetadata() in D:\src\MD2WP\MD2WP.Shared\BusinessLogic\MD2WPClient.cs:line 247
   at MoonspaceLabs.Shared.BusinessLogic.MD2WPClient.PublishMarkdownFiles() in D:\src\MD2WP\MD2WP.Shared\BusinessLogic\MD2WPClient.cs:line 339
   at MoonspaceLabs.Shared.CLI.Program.Main(String[] args) in D:\src\MD2WP\MD2WP.CLI\Program.cs:line 81
##[error]System.Management.Automation.RemoteException: 
##[debug]Processed: ##vso[task.logissue type=error;]System.Management.Automation.RemoteException: 

##[error]PowerShell script completed with 4 errors.
##[section]Finishing: Markdown to WordPress - Announcements

This isn't helpful in diagnosing what the problem. We eventually found out it was the "VSTS Access Token"

Should be renamed probably to "Azure DevOps Access Token"