LoadError：无法加载此类文件—捆绑程序/设置capistrano

Question

Edit #1

Here is the log

** DEPLOY FAILED
** Refer to log/capistrano.log for details. Here are the last 20 lines:


 DEBUG [d8da8d91] Command: if test ! -d /home/poladmin/poetry_out_loud_v2/releases/20180629192529; then echo "Directory does not exist '/home/poladmin/poetry_out_loud_v2/releases/20180629192529'" 1>&2; false; fi

 DEBUG [d8da8d91] Finished in 0.495 seconds with exit status 0 (successful).

  INFO [64734ae3] Running $HOME/.rbenv/bin/rbenv exec rake assets:precompile as poladmin@196.28.51.162

 DEBUG [64734ae3] Command: cd /home/poladmin/poetry_out_loud_v2/releases/20180629192529 && ( export RBENV_ROOT="$HOME/.rbenv" RBENV_VERSION="2.5.1" RAILS_ENV="production" RAILS_GROUPS="" ; $HOME/.rbenv/bin/rbenv exec rake assets:precompile )

 DEBUG [64734ae3]       rake aborted!

Bundler::GemNotFound: Could not find rake-12.3.1 in any of the sources

 DEBUG [64734ae3]       /home/poladmin/poetry_out_loud_v2/releases/20180629192529/config/boot.rb:3:in `<top (required)>'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/config/application.rb:1:in `require_relative'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/config/application.rb:1:in `<top (required)>'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/Rakefile:4:in `require_relative'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/Rakefile:4:in `<top (required)>'

 DEBUG [64734ae3]

Caused by:

 DEBUG [64734ae3]       LoadError: cannot load such file -- bundler/setup

 DEBUG [64734ae3]       /home/poladmin/poetry_out_loud_v2/releases/20180629192529/config/boot.rb:3:in `<top (required)>'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/config/application.rb:1:in `require_relative'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/config/application.rb:1:in `<top (required)>'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/Rakefile:4:in `require_relative'

/home/poladmin/poetry_out_loud_v2/releases/20180629192529/Rakefile:4:in `<top (required)>'

The bundler gem is installed on the server.

Original Question

So I'm trying to push my application to a server using capistrano, however, I'm getting a LoadError: cannot load such file -- bundler/setup error with the rake gem, however, locally rake is installed. Here is the Gemfile:

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby '2.5.1'

gem 'rails', '~> 5.2.0'
gem 'puma', '~> 3.11'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'rake', '~> 12.3', '>= 12.3.1'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'mini_racer', platforms: :ruby

gem 'coffee-rails', '~> 4.2'
gem 'turbolinks', '~> 5'
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

gem 'bootsnap', '>= 1.1.0', require: false
gem 'mongoid'

group :development, :test do
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end

group :development do
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'

  gem 'capistrano', '~> 3.7', '>= 3.7.1'
  gem 'capistrano-rails', '~> 1.2'
  gem 'capistrano-passenger', '~> 0.2.0'
  gem 'capistrano-rbenv', '~> 2.1'
end


# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Any help is appreciated.

Answer 1

Try require false in gemfile.

    gem "capistrano", "~> 3.7",  require: false
    gem "capistrano-rails", "~> 1.2", require: false

Answer 2

If you're using rbenv or similar, your bundler and gems might be installed in a different env than your deploy login. You need to tell Cap that. I use this:

set :rbenv_ruby, '2.4.1'
set :rbenv_path, '/Users/stmpjmpr/.rbenv'
set :rbenv_prefix, "RBENV_ROOT=#{fetch(:rbenv_path)} RBENV_VERSION=#{fetch(:rbenv_ruby)} /usr/local/bin/rbenv exec"