Why doesn't bundler see installed gems?

Question

Ruby on Rails

Good time, colleagues!
I installed RVM on a fresh machine , ruby ​​version 2.4.1, rails 5.1, all the gems were installed, everything was done as it had been done many times. Created a project - bundle install worked without problems. I added the gems of interest to the gemfile, I run bundle install - it says that it does not see the railties gem. I commented out the added gems, left only the default ones - all the rules. In Gemfile.lock I checked the versions - everything is in order.
gemfile:

source ' https://rubygems.org '
git_source(:github) do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
" https://github.com/#{repo_name}.git "
end
# Bundle edge Rails instead: gem 'rails' , github: 'rails/rails'
gem 'rails', '~> 5.1.0'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma', '~> 3.7'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.
for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Capistrano for deployment
# gem '
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
# Adds support for Capybara system testing and selenium driver
gem 'capybara', ' ~> 2.13.0'
gem 'selenium-webdriver'
end
group :development do
# Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
gem 'web-console', '>= 3.3.0'
gem 'listen', '>= 3.0.5', '< 3.2'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
# My gemset
gem 'bootstrap', '~> 4.0. 0.alpha6'
source ' https://rails-assets.org ' do
gem 'rails-assets-tether', '>= 1.3.3'
end
gem 'font-awesome-rails', '~> 4.7', ' >= 4.7.0.2'
gem 'russian', '~> 0.6.0'
gem 'devise', '~> 4.2', '>= 4.2.1'
gem 'devise-i18n', '~> 1.1', ' >= 1.1.2'
gem 'simple_form', '~> 3.4'

bundler's curses:

The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby ​​but the dependency is only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run `bundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`.
Fetching gem metadata from https://rails-assets.org/...
Fetching version metadata from https://rails-assets.org/..
Fetching gem metadata from https://rails-assets.org/...
Fetching gem metadata from https://rubygems.org/..........
Fetching version metadata from https://rails-assets.org/..
Fetching version metadata from https://rubygems.org/ ...
Fetching dependency metadata from https://rails-assets.org/..
Fetching dependency metadata from https://rubygems.org/..
Resolving dependencies...
Bundler could not find compatible versions for gem "railties":
In snapshot ( Gemfile.lock):
railties (= 5.1.0)
In Gemfile:
coffee-rails (~> 4.2) was resolved to 4.2.1, which depends on
railties (< 5.2.x, >= 4.0.0)
devise (>= 4.2.1, ~> 4.2) was resolved to 4.2.1, which depends on
railties (< 5.1, >= 4.1.0)
font-awesome-rails (>= 4.7.0.2, ~> 4.7) was resolved to 4.7. 0.2, which depends on
railties (< 5.2, >= 3.2)
rails (~> 5.1.0) was resolved to 5.1.0, which depends on
railties (= 5.1.0)
devise (>= 4.2.1, ~> 4.2) was resolved to 4.2.1, which depends on
responders was resolved to 2.4.0, which depends on
railties (< 5.3, >= 4.2.0)
sass-rails (~> 5.0) was resolved to 5.0.6, which depends on
railties (< 6, >= 4.0.0)
web- console (>= 3.3.0) was resolved to 3.5.0, which depends on
railties (>= 5.0)
Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.

I'm basically new to rails. Tell me where to dig?

Answer 1

Have you tried deleting Gemfile.lock and running bundle install again with this list of gems?