# Accessing a nested MC from within a dynamic MC

**URL:** <https://forum.kirupa.com/t/accessing-a-nested-mc-from-within-a-dynamic-mc/332582>\
**Category:** flash\
**Created:** [August 4, 2014, 11:10am UTC](https://forum.kirupa.com/t/accessing-a-nested-mc-from-within-a-dynamic-mc/332582 "2014-08-04T11:10:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Skribble](https://avatars.discourse-cdn.com/v4/letter/s/b487fb/32.png) [@Skribble](https://forum.kirupa.com/u/Skribble)\
**Post date:** [August 4, 2014, 11:10am UTC](https://forum.kirupa.com/t/accessing-a-nested-mc-from-within-a-dynamic-mc/332582/1 "2014-08-04T11:10:40Z")

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Hi everyone. I’m a long-time user of AS2, and I’m just starting to get the hang of AS3. One barrier I’ve come to is the following:

I attach a movieclip named **MC1** to the stage using **addChild** , and this works fine. I can control **MC1** without issue.  
However, there are 3 movieclips within **MC1** ; one on frame 1, one on frame 2, and one on frame 3. They’ve each been given unique instance names - **MC1a** ,\*\* MC1b\*\*, and **MC1c**. And for some reason I cannot access them in the standard way of **MC1.MC1a** …etc. I am given the following error:

> Cannot access a property or method of a null object reference.

I’ve searched the forum and Google, but the issues I’ve found that were resolved are different from my specific problem, or I was simply unable to apply the solutions successfuly to my own problem due to my lack of experience. I’d greatly appreciate any input or help on this.

Cheers

Brendan