# Sidekiq Gem::ConflictError

**URL:** <https://meta.discourse.org/t/sidekiq-gem-conflicterror/49076>\
**Category:** Product Support\
**Created:** [23 Agosto , 2016 16:25 UTC](https://meta.discourse.org/t/sidekiq-gem-conflicterror/49076 "2016-08-23T16:25:53Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Overgrow](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/overgrow/32/478189_2.png) [@Overgrow](https://meta.discourse.org/u/Overgrow)\
**Post date:** [24 Agosto , 2016 14:47 UTC](https://meta.discourse.org/t/sidekiq-gem-conflicterror/49076/3 "2016-08-24T14:47:43Z")

</div>

Finally… Solved.. I have downgraded sidekiq to 4.1.2

`gem uninstall sidekiq`

`gem install sidekiq --version '<=4.1.2'`

/home/carlos/.rbenv/versions/2.3.0/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/runtime.rb:35:in `block in setup': You have already activated activesupport 5.0.0, but your Gemfile requires activesupport 4.2.7. Prepending `bundle exec` to your command may solve this. (Gem::LoadError)

So `bundle exec sidekiq` works perfectly..

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