Err: Null is not an object (evaluating 'obj.tagName')

I am getting below error while trying to execute the code

Err: Null is not an object (evaluating 'obj.tagName')

Can anyone suggest me the reason for the error
Hi Venkatesh,

As for the information provided, obj is going as Null and accessing obj.tagName is throwing the error as there is no property available for Null.

This case might happen in some of the Appzillon infra functions if the right DOM object or the DOM ID is not passed to the function.

We will be able to help more if you can share the code that is getting executed.

Please provide the error stack also for further assistance.

Darshan Sagar