This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice This article is not considered official documentation for K2 software and is provided “as is” with no warranties.


The following error appears when logging into the K2 Designer site:

"An item with the same key has already been added"



  • The issue is caused by a certain View and/or Form that was checked out for editing.
  • Only the user who checked out the View and/or Form encounters the error. Other users are able to access K2 Designer without issues. 

Troubleshooting Steps

If you know which View and/or Form you were editing prior to receiving the error, you will need to undo check out the View and/or Form from the K2 database.

Please contact K2 Support for further assistance on resolving the issue.