Widget error: Unable to get property 'selectSingleNode' of undefined or null reference

This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.


The following widget error appears:
"Unable to get property 'selectSingleNode' of undefined or null reference"



You are unable to configure the method in the rule. The error message is displayed on all browsers (IE, Chrome, Firefox). Recreating the SmartObject does not solve this issue. There are no errors logged in the hostserver logs.

Troubleshooting Steps

This issue was resolved after cancelling the checkout of one of the views which is included in the Form.