leigh@leigh-VirtualBox:~/Projects/dev01$bundle install
Using rake 10.3.2
Using i18n 0.6.11
Using json 1.8.1
Using minitest 5.4.0
Using thread_safe 0.3.4
Using tzinfo 1.2.1
Using activesupport 4.1.4
Using builder 3.2.2
Using erubis 2.7.0
Using actionview 4.1.4
Using rack 1.5.2
Using rack-test 0.6.2
Using actionpack 4.1.4
Using mime-types 1.25.1
Using polyglot 0.3.5
Using treetop 1.4.15
Using mail 2.5.4
Using actionmailer 4.1.4
Using activemodel 4.1.4
Using arel 5.0.1.20140414130214
Using activerecord 4.1.4
Using execjs 2.2.1
Using autoprefixer-rails 2.1.1.20140710
Using bcrypt 3.1.7
Using sass 3.2.19
Using bootstrap-sass 3.2.0.0
Using thor 0.19.1
Using railties 4.1.4
Using bootswatch-rails 3.2.0
Using coffee-script-source 1.7.1
Using coffee-script 2.3.0
Using coffee-rails 4.0.1
Using data-confirm-modal 1.0.1 from git://github.com/ifad/data-confirm-modal.git (at master)
Using declarative_authorization 0.5.7
Using orm_adapter 0.5.0
Using warden 1.2.3
Using devise 3.2.4
Using hike 1.2.3
Using multi_json 1.10.1
Using jbuilder 2.1.3
Using jquery-rails 3.1.1
Using bundler 1.6.4
Using tilt 1.4.1
Using sprockets 2.11.0
Using sprockets-rails 2.1.3
Using rails 4.1.4
Using rdoc 4.1.1
Using sass-rails 4.0.3
Using sdoc 0.4.0
Using spring 1.1.3
Using sqlite3 1.3.9
Using turbolinks 2.2.2
Using uglifier 2.5.3
Your bundle is complete!
Use `bundle show [gemname]` to see where a bundled gem is installed.
leigh@leigh-VirtualBox:~/Projects/dev01$rails generate devise:install
Could not find generator devise:install.
leigh@leigh-VirtualBox:~/Projects/dev01$

我的Gemfile是：

source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails',github: 'rails/rails'
gem 'rails','4.1.4'
# Use sqlite3 as the database for Active Record
gem 'sqlite3'
# Use SCSS for stylesheets
gem 'sass-rails','~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier','>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails','~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer',platforms: :ruby

# 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'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder','~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc','~> 0.4.0',group: :doc

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

gem 'bootstrap-sass','~> 3.2.0.0'
gem 'bootswatch-rails','~> 3.2.0'

gem 'autoprefixer-rails'

# Use data-confirm-modal to create custom alert modal popups
gem 'data-confirm-modal',github: 'ifad/data-confirm-modal'

# Use devise for user authentication
gem 'devise'
# Use declarative_authorization for user authorisation
gem 'declarative_authorization'

# Use ActiveModel has_secure_password
# gem 'bcrypt','~> 3.1.7'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails',group: :development

# Use debugger
# gem 'debugger',group: [:development,:test]

Rails版本是：

leigh@leigh-VirtualBox:~/Projects/dev01$rails -v
Rails 4.1.4
leigh@leigh-VirtualBox:~/Projects/dev01$

操作系统版本是：

leigh@leigh-VirtualBox:~/Projects/dev01$lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04 LTS
Release:    14.04
Codename:   trusty
leigh@leigh-VirtualBox:~/Projects/dev01$

有关为什么Devise gem在正确添加到Gemfile并运行bundle install之后无法安装的任何想法？

我确实让服务器在某一点运行(rails服务器)并看到一篇文章说明在服务器启动时尝试安装Devise可能会导致奇怪的问题.

我已经再次尝试使用服务器,但没有区别.我确信这可能是因为我在设置中忽略了一些非常简单的事情,只是不确定在哪里看.

关于下一步看哪里的任何建议或建议都会很棒,谢谢.

我已经使用下面的命令进行了测试,但仍然收到了同样的错误：

leigh@leigh-VirtualBox:~/Projects/dev01$bundle exec rails g devise:install
Could not find generator devise:install.

已安装的生成器列表如下,未列出Devise,如何列出？

leigh@leigh-VirtualBox:~/Projects/dev01$rails generate
Usage: rails generate GENERATOR [args] [options]

General options:
  -h,[--help]     # Print generator's options and usage
  -p,[--pretend]  # Run but do not make any changes
  -f,[--force]    # Overwrite files that already exist
  -s,[--skip]     # Skip files that already exist
  -q,[--quiet]    # Suppress status output

Please choose a generator below.

Rails:
  assets
  controller
  generator
  helper
  integration_test
  jbuilder
  mailer
  migration
  model
  resource
  scaffold
  scaffold_controller
  task

Coffee:
  coffee:assets

Jquery:
  jquery:install

Js:
  js:assets

TestUnit:
  test_unit:generator
  test_unit:plugin

leigh@leigh-VirtualBox:~/Projects/dev01$