在Rails 4.1项目中，我刚添加了设计并运行bundle install。在那之后，由于缺少bcrypt，没有命令可以工作：
$ rails c
Could not find bcrypt-3.1.9 in any of the sources
Run `bundle install` to install missing gems.
$ rails generate devise:install
Could not find bcrypt-3.1.9 in any of the sources
Run `bundle install` to install missing gems.
$ bundle exec rails generate devise:install
Could not find bcrypt-3.1.9 in any of the sources
Run `bundle install` to install missing gems.
即使已经安装了它：
$ bundle show
Gems included by the bundle:
* actionmailer (4.1.8)
* actionpack (4.1.8)
* actionview (4.1.8)
* activemodel (4.1.8)
* activerecord (4.1.8)
* activesupport (4.1.8)
* arel (5.0.1.20140414130214)
* bcrypt (3.1.9)
* builder (3.2.2)
* bundler (1.7.6)
* coffee-rails (4.0.1)
* coffee-script (2.3.0)
* coffee-script-source (1.8.0)
* devise (3.4.1)
* domain_name (0.5.22)
* erubis (2.7.0)
* execjs (2.2.2)
* haml (4.0.5)
* haml-rails (0.5.3)
* hike (1.2.3)
* http-cookie (1.0.2)
* i18n (0.6.11)
* jbuilder (2.2.5)
* jquery-rails (3.1.2)
* json (1.8.1)
* mail (2.6.3)
* mechanize (2.7.3)
* mime-types (2.4.3)
* mini_portile (0.6.1)
* minitest (5.4.3)
* multi_json (1.10.1)
* net-http-digest_auth (1.4)
* net-http-persistent (2.9.4)
* nokogiri (1.6.4.1)
* ntlm-http (0.1.1)
* orm_adapter (0.5.0)
* pg (0.17.1)
* rack (1.5.2)
* rack-test (0.6.2)
* rails (4.1.8)
* railties (4.1.8)
* rake (10.3.2)
* rdoc (4.1.2)
* responders (1.1.2)
* sass (3.2.19)
* sass-rails (4.0.4)
* sdoc (0.4.1)
* spring (1.1.3)
* sprockets (2.11.3)
* sprockets-rails (2.2.0)
* thor (0.19.1)
* thor-rails (0.0.1)
* thread_safe (0.3.4)
* tilt (1.4.1)
* turbolinks (2.5.2)
* tzinfo (1.2.2)
* uglifier (2.5.3)
* unf (0.1.4)
* unf_ext (0.0.6)
* warden (1.2.3)
* webrobots (0.1.1)
$ bundle show bcrypt
/Users/pupeno/.rvm/gems/ruby-2.1.4@efc/gems/bcrypt-3.1.9
My Gemfile如下所示：
gem "coffee-rails", "~> 4.0.0"
gem "jbuilder", "~> 2.0"
gem "jquery-rails"
gem "rails", ">= 4.1.6"
gem "sass-rails", "~> 4.0.3"
gem "sdoc", "~> 0.4.0", group: :doc
gem "spring", group: :development
gem "pg"
gem "thor-rails"
gem "turbolinks"
gem "uglifier", ">= 1.3.0"
gem "mechanize"
gem "haml"
gem "haml-rails"
gem "devise"
我的Gemfile.lock看起来像这样：
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
mail (~> 2.5, >= 2.5.4)
actionpack (4.1.8)
actionview (= 4.1.8)
activesupport (= 4.1.8)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
actionview (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
erubis (~> 2.7.0)
activemodel (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
activerecord (4.1.8)
activemodel (= 4.1.8)
activesupport (= 4.1.8)
arel (~> 5.0.0)
activesupport (4.1.8)
i18n (~> 0.6, >= 0.6.9)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.1)
tzinfo (~> 1.1)
arel (5.0.1.20140414130214)
bcrypt (3.1.9)
builder (3.2.2)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.3.0)
coffee-script-source
execjs
coffee-script-source (1.8.0)
devise (3.4.1)
bcrypt (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 3.2.6, < 5)
responders
thread_safe (~> 0.1)
warden (~> 1.2.3)
domain_name (0.5.22)
unf (>= 0.0.5, < 1.0.0)
erubis (2.7.0)
execjs (2.2.2)
haml (4.0.5)
tilt
haml-rails (0.5.3)
actionpack (>= 4.0.1)
activesupport (>= 4.0.1)
haml (>= 3.1, < 5.0)
railties (>= 4.0.1)
hike (1.2.3)
http-cookie (1.0.2)
domain_name (~> 0.5)
i18n (0.6.11)
jbuilder (2.2.5)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-rails (3.1.2)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mechanize (2.7.3)
domain_name (~> 0.5, >= 0.5.1)
http-cookie (~> 1.0)
mime-types (~> 2.0)
net-http-digest_auth (~> 1.1, >= 1.1.1)
net-http-persistent (~> 2.5, >= 2.5.2)
nokogiri (~> 1.4)
ntlm-http (~> 0.1, >= 0.1.1)
webrobots (>= 0.0.9, < 0.2)
mime-types (2.4.3)
mini_portile (0.6.1)
minitest (5.4.3)
multi_json (1.10.1)
net-http-digest_auth (1.4)
net-http-persistent (2.9.4)
nokogiri (1.6.4.1)
mini_portile (~> 0.6.0)
ntlm-http (0.1.1)
orm_adapter (0.5.0)
pg (0.17.1)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.1.8)
actionmailer (= 4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
activemodel (= 4.1.8)
activerecord (= 4.1.8)
activesupport (= 4.1.8)
bundler (>= 1.3.0, < 2.0)
railties (= 4.1.8)
sprockets-rails (~> 2.0)
railties (4.1.8)
actionpack (= 4.1.8)
activesupport (= 4.1.8)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.3.2)
rdoc (4.1.2)
json (~> 1.4)
responders (1.1.2)
railties (>= 3.2, < 4.2)
sass (3.2.19)
sass-rails (4.0.4)
railties (>= 4.0.0, < 5.0)
sass (~> 3.2.2)
sprockets (~> 2.8, < 2.12)
sprockets-rails (~> 2.0)
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
spring (1.1.3)
sprockets (2.11.3)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.0)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
thor (0.19.1)
thor-rails (0.0.1)
rails
thor
thread_safe (0.3.4)
tilt (1.4.1)
turbolinks (2.5.2)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.5.3)
execjs (>= 0.3.0)
json (>= 1.8.0)
unf (0.1.4)
unf_ext
unf_ext (0.0.6)
warden (1.2.3)
rack (>= 1.0)
webrobots (0.1.1)
PLATFORMS
ruby
DEPENDENCIES
coffee-rails (~> 4.0.0)
devise
haml
haml-rails
jbuilder (~> 2.0)
jquery-rails
mechanize
pg
rails (>= 4.1.6)
sass-rails (~> 4.0.3)
sdoc (~> 0.4.0)
spring
thor-rails
turbolinks
uglifier (>= 1.3.0)
答案 0 :(得分：2)
这是春天的问题（我知道，wtf？）。基本上，我这样做了：
$ ps aux | grep spring
wendybeth 32281 0.0 0.2 2490496 16280 ?? S Fri01PM 0:00.79 spring server | marketing | started 75 hours ago
$ kill 32281
我是Rails＆amp;的新手发展作为一个整体，我很紧张地说，这个解决方案没有任何副作用。我明白了：
https://jasonplayne.com/web-dev/rails-generate-could-not-find-in-any-of-the-sources
它对我有用。我不知道为什么 - 所以除非你自己理解，否则请谨慎使用。 ：/
答案 1 :(得分：1)
尝试bundle exec rails c，在Gemfile中的gem中运行rails服务器。
答案 2 :(得分：0)
请尝试以下操作：
gem update bundler
bundle install
rails console