# Kali 2016.2/Dradis - Rails startup problem

**URL:** <https://discuss.dradis.com/t/kali-2016-2-dradis-rails-startup-problem/404>\
**Category:** Community Edition\
**Created:** [January 21, 2017, 12:20am UTC](https://discuss.dradis.com/t/kali-2016-2-dradis-rails-startup-problem/404 "2017-01-21T00:20:47Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![rachkor](https://yyz1.discourse-cdn.com/flex035/user_avatar/discuss.dradis.com/rachkor/32/51_2.png) [@rachkor](https://discuss.dradis.com/u/rachkor)\
**Post date:** [January 24, 2017, 2:23pm UTC](https://discuss.dradis.com/t/kali-2016-2-dradis-rails-startup-problem/404/2 "2017-01-24T14:23:54Z")

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@modad34 are you able to run other Rails apps on your system? If not, can you see if the full error message matches this SO topic? [uninitialized constant Rack::Session::Abstract::Persisted to start Rails 5 server - Stack Overflow](http://stackoverflow.com/questions/39190880/uninitialized-constant-racksessionabstractpersisted-to-start-rails-5-serve)

Keep us posted!

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_[View the full topic](https://discuss.dradis.com/t/kali-2016-2-dradis-rails-startup-problem/404)._