# "Data RecordType could not be instantiated!: undefined"

**URL:** <https://www.ruby-forum.com/t/data-recordtype-could-not-be-instantiated-undefined/156358>\
**Category:** Rails\
**Created:** [December 25, 2008, 5:10pm UTC](https://www.ruby-forum.com/t/data-recordtype-could-not-be-instantiated-undefined/156358 "2008-12-25T17:10:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![geneeyuss](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/e495f1/32.png) [@geneeyuss](https://www.ruby-forum.com/u/geneeyuss)\
**Post date:** [December 25, 2008, 5:10pm UTC](https://www.ruby-forum.com/t/data-recordtype-could-not-be-instantiated-undefined/156358/1 "2008-12-25T17:10:47Z")

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I am trying to persist the data from sproutcore application to MYSQL  
using rails. I see that the post is happening on the rails with 200 as  
the response code but, i get an error “Data RecordType could not be  
instantiated!: undefined”. Not able to see where the error is,  
verified the logs but no luck…

Any directions please??