# Flex and CS3 doesn't like Flex and CS4

**URL:** <https://forum.kirupa.com/t/flex-and-cs3-doesnt-like-flex-and-cs4/298472>\
**Category:** flash\
**Created:** [October 19, 2009, 8:18pm UTC](https://forum.kirupa.com/t/flex-and-cs3-doesnt-like-flex-and-cs4/298472 "2009-10-19T20:18:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mrwil](https://avatars.discourse-cdn.com/v4/letter/m/ecd19e/32.png) [@mrwil](https://forum.kirupa.com/u/mrwil)\
**Post date:** [October 19, 2009, 8:18pm UTC](https://forum.kirupa.com/t/flex-and-cs3-doesnt-like-flex-and-cs4/298472/1 "2009-10-19T20:18:52Z")

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Hi

I’m working on a project that was created using flex and CS3. I only have access to CS4 and the class paths normally located at:

C:/Documents and Settings/wturrin/Local Settings/Application Data/Adobe/Flash CS3/en/Configuration/Classes

are nowhere to be found. I tried setting up links to the localSettings/Application/Adobe/Flash CS4/enn/configuration/classes and that didn’t work either.

I keep getting a compile-time error around TweenEvent classes.

please help… mind going broke…

mr.wil