# Flash CS4 doesnt recognize any new AS files

**URL:** <https://forum.kirupa.com/t/flash-cs4-doesnt-recognize-any-new-as-files/308532>\
**Category:** flash\
**Created:** [April 25, 2010, 2:50am UTC](https://forum.kirupa.com/t/flash-cs4-doesnt-recognize-any-new-as-files/308532 "2010-04-25T02:50:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sivavenkatay](https://avatars.discourse-cdn.com/v4/letter/s/ba9def/32.png) [@sivavenkatay](https://forum.kirupa.com/u/sivavenkatay)\
**Post date:** [April 25, 2010, 2:50am UTC](https://forum.kirupa.com/t/flash-cs4-doesnt-recognize-any-new-as-files/308532/1 "2010-04-25T02:50:46Z")

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I have a weird problem. All of a sudden, I am unable to create any new classes in Flash. It refuses to recognize any new AS files that I created (I get class not found errors). I can’t attach a new main source file to an FLA. Everything was working fine yesterday… I tried “Delete ASO files” with no luck.

Did anyone face this before?