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Index Out of Range on App Wizard



An error occurs while going through the App Wizard on K2 Platform Classic.

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index


Steps to reproduce the error are as follows:

  1. Open K2 Workspace and navigate to Apps.
  2. Click on Create a New App if no App has been created; otherwise, click on New... from the toolbar.
  3. Provide a  Name for the App.
  4. For the Template, choose Employee Leave Request.
  5. Click on the button Next (Primary Detail).


Please install at least K2 Platform Classic (5.4) Fix Pack 2 to get the fix for this issue.