Issue Description

When logging into K2 Designer or any Runtime URL using Forms STS authentication, an error occurs.

Error Message

The error states: “An item with the same key has already been added”.

Cause

The error occurs while the security label methods are loaded. The current execution thread had not finished processing yet when the next thread tried to add the security method for a second time.

Resolution

  1. Ensure you have K2 4.7 installed.
  2. Download and install the K2 4.7 November 2017 Cumulative Update from K2 Partner and Customer Portal.
  3. Get the K2 4.7 November 2017 Cumulative Update FP6 from Regional Support.
  4. Install the K2 4.7 November 2017 Cumulative Update FP6 to apply the fix.