Code Fix: An error occurs when you execute the ‘open worklist’ call using the K2 Workflow Client API

[#1]

Code Fix: An error occurs when you execute the ‘open worklist’ call using the K2 Workflow Client API

KB003477

PRODUCT

K2 Five 5.2 to 5.3

K2 Five (5.2) May 2019 Cumulative Update

K2 Five (5.3) Fix Pack 39 to K2 Five (5.2) May 2019 Cumulative Update Fix Pack 33

Issue Description

When you use the worklist item serial number as a filter and execute the ‘open worklist’ call with the K2 Workflow Client API, an error occurs.

Error Message

The following error occurs: “Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index".

Resolution

The fix is available in the following K2 versions:

K2 4.7 December 2019 Cumulative Update	K2 Five (5.0) December 2019 Cumulative Update	K2 Five (5.1) November 2018 Cumulative Update	K2 Five (5.2) May 2019 Cumulative Update	K2 Five (5.3)
X	X	X	Fix Pack 33	Fix Pack 39

1. Ensure you have the correct K2 version and/or Cumulative Update installed. See KB001893 to see what Fix Pack level you have installed.
2. Download the latest Fix Pack using the links in the table above for the version you require.
3. Install the Fix Pack to apply the fix.