# Do i need to worry about.....?

**URL:** <https://forum.kirupa.com/t/do-i-need-to-worry-about/296896>\
**Category:** flash\
**Created:** [September 22, 2009, 12:22pm UTC](https://forum.kirupa.com/t/do-i-need-to-worry-about/296896 "2009-09-22T12:22:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cinimod3](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@cinimod3](https://forum.kirupa.com/u/cinimod3)\
**Post date:** [September 22, 2009, 12:22pm UTC](https://forum.kirupa.com/t/do-i-need-to-worry-about/296896/1 "2009-09-22T12:22:44Z")

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Hi all.

As part of my roll over /pop up menu function i’ve added 'stop’s to movieclips that aren’t always on the stage (basically to stop everything while the menu is on) and of course i get the old error “Cannot access a property or method of a null object reference”. I understand what its saying but my question is - do i need to worry about it when the function does what i want anyway??

Thanks for your thoughts and comments.