Issue Description
When you install K2 or start the K2HostServer service, the service stops and an error occurs in server startup.
Error Message:
The following error occurs:
“System.ArgumentNullException: Value cannot be null.
Parameter name: productVersion”
Followed later on by:
“System.NullReferenceException: Object reference not set to an instance of an object.”
Resolution
The fix is available in:
- Nintex Automation K2 (5.8) Fix Pack 31.
- Nintex Automation K2 (5.9) Fix Pack 11.
- Ensure you have the correct K2 version and/or Cumulative update installed. See KB001893 to see what Fix Pack level you have installed.
- Download the latest Fix Pack using the links in the table above for the version you require.
- Install the Fix Pack to apply the fix.
- It is recommended to clear browser cache and refresh the page.