Rails 5.2.3 to 6.0.0 upgrade dependency hell

Question

I ran bundle update rails to update my app to 6.0, and got this very confusing output. Updating these gems in the gemfile does not have any impact. I can't make heads or tails of this error, and it feels like a catch 22. This is the output:

Bundler could not find compatible versions for gem "actionpack":
In Gemfile:
activerecord-session_store (~> 1.1, >= 1.1.3) was resolved to 1.1.3, which depends on
  actionpack (>= 4.0)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  formtastic (~> 3.1) was resolved to 3.1.5, which depends on
    actionpack (>= 3.2.13)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  inherited_resources (>= 1.9.0) was resolved to 1.11.0, which depends on
    has_scope (~> 0.6) was resolved to 0.7.2, which depends on
      actionpack (>= 4.1)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  inherited_resources (>= 1.9.0) was resolved to 1.11.0, which depends on
    actionpack (>= 5.0, < 6.1)

rails (= 6.0.0) was resolved to 6.0.0, which depends on
  actionpack (= 6.0.0)

devise (~> 4.2) was resolved to 4.7.1, which depends on
  responders was resolved to 3.0.0, which depends on
    actionpack (>= 5.0)

Bundler could not find compatible versions for gem "activemodel":
In Gemfile:
carrierwave (~> 2.0, >= 2.0.2) was resolved to 2.0.2, which depends on
  activemodel (>= 5.0.0)

rails (= 6.0.0) was resolved to 6.0.0, which depends on
  activemodel (= 6.0.0)

Bundler could not find compatible versions for gem "activerecord":
In Gemfile:
activerecord-session_store (~> 1.1, >= 1.1.3) was resolved to 1.1.3, which depends on
  activerecord (>= 4.0)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  kaminari (>= 0.15) was resolved to 1.1.1, which depends on
    kaminari-activerecord (= 1.1.1) was resolved to 1.1.1, which depends on
      activerecord

rails (= 6.0.0) was resolved to 6.0.0, which depends on
  activerecord (= 6.0.0)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  ransack (>= 1.8.7) was resolved to 2.3.0, which depends on
    activerecord (>= 5.0)

Bundler could not find compatible versions for gem "activesupport":
In Gemfile:
bullet (~> 6.1) was resolved to 6.1.0, which depends on
  activesupport (>= 3.0.0)

carrierwave (~> 2.0, >= 2.0.2) was resolved to 2.0.2, which depends on
  activesupport (>= 5.0.0)

jbuilder (~> 2.0) was resolved to 2.9.1, which depends on
  activesupport (>= 4.2.0)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  kaminari (>= 0.15) was resolved to 1.1.1, which depends on
    activesupport (>= 4.1.0)

rails (= 6.0.0) was resolved to 6.0.0, which depends on
  activesupport (= 6.0.0)

stripe_event (~> 2.3) was resolved to 2.3.0, which depends on
  activesupport (>= 3.1)

Bundler could not find compatible versions for gem "rails":
In Gemfile:
rails (= 6.0.0)

invisible_captcha (~> 1.0) was resolved to 1.0.0, which depends on
  rails (>= 4.2)

mini_backtrace (= 0.1.3) was resolved to 0.1.3, which depends on
  rails (>= 2.3.3)

Bundler could not find compatible versions for gem "railties":
In Gemfile:
activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  railties (>= 4.2, < 5.3)

activerecord-session_store (~> 1.1, >= 1.1.3) was resolved to 1.1.3, which depends on
  railties (>= 4.0)

devise (~> 4.2) was resolved to 4.7.1, which depends on
  railties (>= 4.1.0)

factory_bot_rails (~> 4.8, >= 4.8.2) was resolved to 4.11.1, which depends on
  railties (>= 3.0.0)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  inherited_resources (>= 1.9.0) was resolved to 1.11.0, which depends on
    railties (>= 5.0, < 6.1)

activeadmin (~> 1.4.3) was resolved to 1.4.3, which depends on
  jquery-rails (>= 4.2.0) was resolved to 4.3.5, which depends on
    railties (>= 4.2.0)

rails (= 6.0.0) was resolved to 6.0.0, which depends on
  railties (= 6.0.0)

sass-rails (~> 5.0.6) was resolved to 5.0.7, which depends on
  railties (>= 4.0.0, < 6)

web-console (~> 3.0) was resolved to 3.7.0, which depends on
  railties (>= 5.0)

My Gemfile looks like this:

source 'https://rubygems.org'
ruby '2.5.0'

gem 'rails', '6.0.0'
gem 'pg', '~> 0.18.3'
gem 'iodine', '~> 0.7.38'
gem 'sass-rails', '~> 5.0.6'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails'
gem 'therubyracer', '~> 0.12.3'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
gem 'figaro', '~> 1.1', '>= 1.1.1'
gem 'less-rails', '~> 4.0.0'
gem 'autoprefixer-rails'
gem 'devise', '~> 4.2'
gem 'mini_magick', '~> 4.5', '>= 4.5.1'
gem 'carrierwave', '~> 2.0', '>= 2.0.2'
gem 'fog-aws', '~> 3.5', '>= 3.5.2'
gem 'aws-sdk', '~> 2'
gem 'activeadmin', '~> 1.4.3'
gem 'friendly_id', '~> 5.1'
gem 'pagy', '~> 3.7', '>= 3.7.2'
gem 'activerecord-session_store', '~> 1.1', '>= 1.1.3'
gem 'sprockets', '3.7.2'
gem 'aasm', '~> 5.0'
gem 'redis', '~> 4.1', '>= 4.1.3'
gem 'sidekiq', '~> 6.0', '>= 6.0.4'
gem 'local_time', '~> 2.1'
gem 'stripe', '~> 5.11'
gem 'stripe_event', '~> 2.3'
gem 'lockbox', '~> 0.2.4'
gem 'mailgunner', '~> 2.4'
gem 'rack-attack'
gem 'invisible_captcha', '~> 1.0'

group :development do
  gem 'web-console', '~> 3.0'
  gem 'letter_opener', '~> 1.7'
  gem 'bullet', '~> 6.1'
end

group :development, :test do
  gem 'byebug'
  gem 'spring'
  gem 'spring-commands-rspec'
  gem 'factory_bot_rails', '~> 4.8', '>= 4.8.2'
  gem 'faker', '~> 1.6', '>= 1.6.6'
  gem 'minitest', '~> 5.8', '>= 5.8.4'
end

group :test do
  gem 'minitest-reporters', '1.0.5'
  gem 'mini_backtrace',     '0.1.3'
  gem 'guard-minitest',     '2.3.1'
  gem 'database_cleaner', '~> 1.7'
end

group :production do
  gem 'newrelic_rpm'
end

What does the error mean? Where do I start? Do I do bundle update first, and then bundle update rails? Or vice versa? This is like battling a hydra.

`actionmailer` is part of Rails. Your version of ActiveAdmin depends on `actionpack (>= 5.0, < 6.1)` so you can start by upgrading ActiveAdmin. — mu is too short, Apr 25 '20 at 23:34
i just updated my op. i'm confused, though. if i have my rails gem at `6.0.0` and try to update `activerecord-session_store`, i get an error that says rails is locked at `5.2.3`. if i leave the rails gem at `5.2.3` and try to update `activerecord-session_store`, i get `Bundler attempted to update activerecord-session_store but its version stayed the same`. this feels like a catch 22 or something? — calyxofheld, Apr 26 '20 at 00:57
@muistooshort sorry to bother you again, but i'm confused by your message. this is like a catch 22. which part of this error do i start with first? i can't make heads or tails of it. — calyxofheld, Apr 29 '20 at 02:30
This process can be a nightmare, worse than a hydra because fire doesn't help. I'd start by bumping the Ruby version to 2.6.6+. Then drop all the `~>` version requirements, the only versions you probably need to keep are the Ruby and Rails ones. That will tell bundler to use the latest versions of everything, this might break a bunch of things but it should get you past the initial `bundle` call. You'll also want to review all the upgrade guides for everything and I hope your test suite is good. — mu is too short, Apr 29 '20 at 03:01
I’ve recently found myself in a very similar position trying rails 4 to 5. Any tips? — Matt, Apr 14 '21 at 23:47

score 1 · Answer 1 · answered Mar 12 '22 at 16:52

I managed to get past this error by adding the following to my Gemfile

gem 'sassc', '~> 2.1.0'

After that, running bundle install returned this:

You have requested:
  sassc ~> 2.1.0

The bundle currently has sassc locked at 2.4.0.
Try running `bundle update sassc`

...so I ran bundle update sassc and then bundle install. Everything seems to have updated normally, so far at least.

This is apparently a known issue with sassc, mentioned here and here.

However, my bundler was getting stuck on the sassc update. Hopefully someone else can provide more insight on the other gems

Rails 5.2.3 to 6.0.0 upgrade dependency hell

1 Answers1