Hl. i'm use ruby 2.5 and rails 5.2
when i installing the gem and run rails s or rails c it was error
uninitialized constant Devise::Verifiable::Controller
There was an error while trying to load the gem 'devise-verifiable'. (Bundler::GemRequireError) Gem Load Error is: uninitialized constant Devise::Verifiable::Controller

When I try and bundle and get 0.0.3, I get the following

Bundler could not find compatible versions for gem "devise":
  In snapshot (Gemfile.lock):
    devise (= 4.4.1)

  In Gemfile:
    devise-i18n was resolved to 1.6.0, which depends on
      devise (>= 4.4)

    devise-verifiable (~> 0.0.3) was resolved to 0.0.3, which depends on
      devise (~> 3.5)

Hi Rodrigora, when i try install this gem in my rails 5 app, show me this error:

Bundler could not find compatible versions for gem "devise":
In snapshot (Gemfile.lock):
devise (= 4.2.0)

In Gemfile:
devise

devise-verifiable was resolved to 0.0.1, which depends on
  devise (~> 3.5)

Running bundle update will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.

This my Gemfile:

source 'https://rubygems.org'

Bundle edge Rails instead: gem 'rails', github: 'rails/rails'

gem 'rails', '5.0.0'

Use sqlite3 as the database for Active Record

gem 'sqlite3'

Use SCSS for stylesheets

gem "compass-rails"
gem 'sass-rails', '~> 5.0'

Use Uglifier as compressor for JavaScript assets

gem 'uglifier', '>= 1.3.0'

Use CoffeeScript for .coffee assets and views

gem 'coffee-rails', '~> 4.2'

See https://github.com/rails/execjs#readme for more supported runtimes

gem 'therubyracer', platforms: :ruby

gem 'rest-client'
gem 'rollbar'

Use jquery as the JavaScript library

gem 'jquery-rails'

Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks

gem 'turbolinks'
gem 'capistrano3-nginx', '> 2.0'
gem 'record_tag_helper', '> 1.0'

Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder

gem 'jbuilder', '~> 2.5'

bundle exec rake doc:rails generates the API under doc/api.

gem 'sdoc', '~> 0.4.0', group: :doc

Images upload and proccessing

gem 'carrierwave'
gem 'mini_magick'
gem 'gon'
gem 'jquery-turbolinks'
gem "fog-aws"
gem 'kaminari'
gem 'groupdate'
gem "chartkick"
gem 'hightop'

gem "refile", require: "refile/rails"

gem "refile-mini_magick"

Semantic UI stylesheets css

gem 'semantic-ui-sass', github: 'doabit/semantic-ui-sass'
gem 'nokogiri'
gem 'premailer-rails'

Use ActiveModel has_secure_password

gem 'bcrypt'

I18n Translates

gem 'rails-i18n'

Use Unicorn as the app server

gem 'unicorn'

Use Capistrano for deployment

gem 'capistrano-rails', group: :development

Use Devise for user auth

gem 'devise'

group :development, :test do

Call 'byebug' anywhere in the code to stop execution and get a debugger console

gem 'byebug'
gem "better_errors"
end

group :development do

Access an IRB console on exception pages or by using <%= console %> in views

gem 'web-console', '> 2.0'
gem 'mysql2'
gem 'letter_opener_web', '> 1.2.0'

Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring

gem 'spring'
gem 'capistrano'
gem 'capistrano3-puma'
gem 'capistrano-rails', require: false
gem 'capistrano-bundler', require: false
gem 'capistrano-rvm'
gem 'capistrano-ext'
gem 'capistrano-rails-console'
end

group :production do
gem 'figaro'
gem 'puma'
gem 'mysql2'
gem 'rails_12factor'
gem 'redis', '~> 3.0'
end

gem 'devise-encryptable'
gem 'fog'