# Wednesday, February 27, 2013

I’ve posted this more as a reminder to myself next time I create TFSJobAgent plugins.

If you ever encounter the error below when adding a new TFSJobAgent plugin:

TF53010: The following error has occurred in a Team Foundation component or extension:
Date (UTC): 2/25/2013 2:04:52 PM
Machine: VSTSR-VM2012RTM
Application Domain: TfsJobAgent.exe
Assembly: Microsoft.TeamFoundation.Framework.Server, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a; v4.0.30319
Service Host:
Process Details:
  Process Name: TFSJobAgent
  Process Id: 8996
  Thread Id: 6656

Detailed Message: There was an error during job agent execution. The operation will be retried. Similar errors in the next five minutes may not be logged.
Exception Message: An item with the same key has already been added. (type ArgumentException)
Exception Stack Trace:    at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at Microsoft.TeamFoundation.Framework.Server.TeamFoundationExtensionUtility.LoadExtensionTypeMap[T](String pluginDirectory)
   at Microsoft.TeamFoundation.Framework.Server.JobApplication.SetupInternal()
   at Microsoft.TeamFoundation.Framework.Server.JobServiceUtil.RetryOperationsUntilSuccessful(RetryOperations operations, Int32& delayOnExceptionSeconds)

The above error was caused by me having more than one copy of my component in the plugins folder

C:\Program Files\Microsoft Team Foundation Server 11.0\Application Tier\TFSJobAgent\plugins

You’re probably wondering how this is possible? I actually had another folder in the plugins folder with a copy of my component. The TFSJobAgent uses reflection to find all components that implement the ITeamFoundationJobExtension interface at runtime this includes all subfolders under the plugins directory.

Tags: TFS

Wednesday, February 27, 2013 9:30:22 AM (GMT Standard Time, UTC+00:00)  #    Comments [0]