Issue Description

When a Windows Communication Foundation (WCF) method return parameter is assigned a null value, an exception occurs.

Error Message

“An object cannot be null”.

Resolution

  1. Ensure you have K2 4.7 installed.
  2. Download and install the K2 4.7 May 2017 Cumulative Update from K2 Partner and Customer Portal.
  3. Get the K2 4.7 May 2017 Cumulative Update FP1 from Regional Support.
  4. Install the K2 4.7 May 2017 Cumulative Update FP1 to apply the fix.