# Using Rasa X with old version of Rasa

**URL:** <https://forum.rasa.com/t/using-rasa-x-with-old-version-of-rasa/22712>\
**Category:** Rasa Open Source\
**Created:** [December 22, 2019, 5:06am UTC](https://forum.rasa.com/t/using-rasa-x-with-old-version-of-rasa/22712 "2019-12-22T05:06:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![raymond](https://avatars.discourse-cdn.com/v4/letter/r/c57346/32.png) [@raymond](https://forum.rasa.com/u/raymond)\
**Post date:** [December 22, 2019, 5:06am UTC](https://forum.rasa.com/t/using-rasa-x-with-old-version-of-rasa/22712/1 "2019-12-22T05:06:16Z")

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I have had project which used Rasa since mid 2018, but only recently migrated to version 1.x. Previously I had Rasa NLU and core separated, with separate config files etc. How can I use Rasa X with the old version? E.g. is it possible to specify separate config files for NLU and core, e.g. using the --config argument?

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**Author:** ![raymond](https://avatars.discourse-cdn.com/v4/letter/r/c57346/32.png) [@raymond](https://forum.rasa.com/u/raymond)\
**Post date:** [December 25, 2019, 10:15am UTC](https://forum.rasa.com/t/using-rasa-x-with-old-version-of-rasa/22712/2 "2019-12-25T10:15:29Z")

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For anyone wondering, I ended up just switching to the new Rasa project setup (created by running rasa init).