# Restore Fails EXCEPTION: undefined method \`config\_filename' for nil:NilClass

**URL:** <https://meta.discourse.org/t/restore-fails-exception-undefined-method-config-filename-for-nil-nilclass/131768>\
**Category:** Product Support\
**Created:** [October 23, 2019, 11:12pm UTC](https://meta.discourse.org/t/restore-fails-exception-undefined-method-config-filename-for-nil-nilclass/131768 "2019-10-23T23:12:00Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![kris.kotlarek](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/kris.kotlarek/32/176919_2.png) [@kris.kotlarek](https://meta.discourse.org/u/kris.kotlarek)\
**Post date:** [October 24, 2019, 5:50am UTC](https://meta.discourse.org/t/restore-fails-exception-undefined-method-config-filename-for-nil-nilclass/131768/5 "2019-10-24T05:50:15Z")

</div>

I think that easiest way to get latest code would be `./launcher rebuild app`

---

_[View the full topic](https://meta.discourse.org/t/restore-fails-exception-undefined-method-config-filename-for-nil-nilclass/131768)._