# 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:** 2\
**Page:** 1

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**Author:** ![modad34](https://avatars.discourse-cdn.com/v4/letter/m/779978/32.png) [@modad34](https://discuss.dradis.com/u/modad34)\
**Post date:** [January 21, 2017, 12:20am UTC](https://discuss.dradis.com/t/kali-2016-2-dradis-rails-startup-problem/404/1 "2017-01-21T00:20:47Z")

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Hello,  
I uninstalled Dradis that came with Kali 2016.2, installed the pre-requisites and then reinstalled Dradis from Github by following the directions in Kali Dradis installation.

# However, I’m having problems starting the server. When i run the command: ‘bundle exec rails server’ I get the following error and [http://localhost:3000](http://localhost:3000) doesn’t load.

oot@kali:/usr/lib/dradis-ce# bundle exec rails server  
DEPRECATION WARNING: before\_filter is deprecated and will be removed in Rails 5.1. Use before\_action instead. (called from require at /usr/lib/ruby/vendor\_ruby/bundler/runtime.rb:91)  
DEPRECATION WARNING: before\_filter is deprecated and will be removed in Rails 5.1. Use before\_action instead. (called from require at /usr/lib/ruby/vendor\_ruby/bundler/runtime.rb:91)  
=\> Booting Thin  
=\> Rails 5.0.1 application starting in development on [http://localhost:3000](http://localhost:3000)  
=\> Run `rails server -h` for more startup options  
Exiting  
/var/lib/gems/2.3.0/gems/actionpack-5.0.1/lib/action\_dispatch/middleware/session/abstract\_store.rb:90:in `module:Session’: uninitialized constant Rack::Session::Abstract::Persisted (NameError)

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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!