When attempting to update a TFS work item I got the following error prompt:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOWg3eV7u2ER229ve-BrvigdutilfNDLj3bZMqy9ImbguKZ_7s18GRmSkYEx3iMoXTaMGowVEiJaI00envPiV18oCRh0WFcLkJn0gLcJC8yjPWqh3KJbL5Ludm6yHZYqxYLmQA3_Nkc92K/s400/TF20017.jpg)
To add the new iteration from the menu: Team > Team Project Settings > Areas and Iterations...
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhIuZXzyKHDOH0ebfsJ_7oiY6uej2xiGai6bSbTr4XJrv0NZZdbf7A4i62_BCXX5lSZHNwPcni2uODg-RQ2VJQ3h4WzUmJmiXrH4jGNf1Ejjvu93eun3d_ywyCHbvLE6ameGT05pQDWMEfQ/s400/TF20017_menu.jpg)
Then jump to the Iteration tab and use the "Add a child node" button.
Refreshing the TFS cached iteration list
- Close Visual Studio to release any file locks in the cache.
- Delete all the files in:
C:\Documents and Settings\[USER]\Local Settings\Application Data\Microsoft\Team Foundation\2.0\Cache
or
C:\Users\[USER]\AppData\Local\Microsoft\Team Foundation\2.0\Cache
depending on your OS.