# 3D classes not working

**URL:** <https://forum.kirupa.com/t/3d-classes-not-working/277074>\
**Category:** Uncategorized\
**Created:** [December 7, 2008, 1:37pm UTC](https://forum.kirupa.com/t/3d-classes-not-working/277074 "2008-12-07T13:37:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Stratboy](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/stratboy/32/3054_2.png) [@Stratboy](https://forum.kirupa.com/u/Stratboy)\
**Post date:** [December 7, 2008, 1:37pm UTC](https://forum.kirupa.com/t/3d-classes-not-working/277074/1 "2008-12-07T13:37:49Z")

</div>

Hi! I’ve got some little problem with 3D classes… It seems that flash doesn’t recognize them.

For example, blank document, 1 mc on the stage, inst. name: square.

```auto

import flash.geom.*;
square.z = -30;
var squareMatrix:Matrix3D = square.transform.matrix3D;

```

Flash says:

1046: Type was not found or was not a compile-time constant: Matrix3D.  
1119: Access of possibly undefined property matrix3D through a reference with static type flash.geom:Transform.

Is it maybe possible a conflict between cs3 and cs4 intallation? I’ve got both on my Mac, since cs4 is an upgrade, being cs3 the original licence.

Anyone? 🙂