Issue Description

After upgrading from K2 4.7 to K2 Five RTM, an error occurs when editing an existing form with references to a workflow and clicking the Save button. The issue is due to a Tree view refresh and not with saving the form.

Error Message

The error message states: “Object reference not set to an instance of an object”.


  1. Ensure you have K2 Five RTM installed.
  2. Get the K2 Five RTM FP7 from Regional Support.
  3. Install the K2 Five RTM FP7 to apply the fix.