# Compile errors after updating SDK

**URL:** <https://forum.kirupa.com/t/compile-errors-after-updating-sdk/288592>\
**Category:** flash\
**Created:** [May 18, 2009, 4:38pm UTC](https://forum.kirupa.com/t/compile-errors-after-updating-sdk/288592 "2009-05-18T16:38:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cesig](https://avatars.discourse-cdn.com/v4/letter/c/278dde/32.png) [@cesig](https://forum.kirupa.com/u/cesig)\
**Post date:** [May 18, 2009, 4:38pm UTC](https://forum.kirupa.com/t/compile-errors-after-updating-sdk/288592/1 "2009-05-18T16:38:58Z")

</div>

I’m coding an AS3 project with Flex Builder. I just updated my Flex SDK from 3.1 to 3.3. And that’s IT. Now, when I try to compile I get the following errors:

1046: Type was not found or was not a compile-time constant: [mx.automation]::IAutomationObject.

1046: Type was not found or was not a compile-time constant: [mx.core]::IConstraintClient.

I literally changed nothing about my code at all. And to my knowledge, I’m not using either one of these classes.

Any ideas?