# AS 3 Question

**URL:** <https://forum.kirupa.com/t/as-3-question/326347>\
**Category:** flash\
**Created:** [December 7, 2011, 8:39pm UTC](https://forum.kirupa.com/t/as-3-question/326347 "2011-12-07T20:39:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [December 7, 2011, 8:39pm UTC](https://forum.kirupa.com/t/as-3-question/326347/1 "2011-12-07T20:39:03Z")

</div>

I have a MC that uses an external .as file and works fine when it is published to a .swf

I am now calling that above mentioned swf file to run in my main movie (it did before I added the external .as) but it will not.

The error message I get when publishing the Main Movie is:

TypeError: Error #1009: Cannot access a property or method of a null object reference.  
at Snowflake/SetInitialProperties()  
at Intro\_fla::MainTimeline/makeItSnow()  
at Intro\_fla::MainTimeline/frame1()