Conversation from innodb engine to myiasm engine

The following error I am getting while converting from innodb engine to myiasm engine please let me know resolution
Cannot delete or update a parent row: a foreign key constraint fails

Hi malakari;

MyISAM does not support foreign keys. If you want to convert your tables to MyISAM, you will need to drop the foreign key constraints first and then do the conversion.

[URL]http://dev.mysql.com/doc/refman/5.5/en/alter-table.html[/URL]

-Scott