Ruby on Rails - 无法在任何来源中找到 xpath-2.0.0
Ruby on Rails - Could not find xpath-2.0.0 in any of the sources
尝试 运行 'rails g rspec:install' 并保持 运行ning 出错：
Could not find xpath-2.0.0 in any of the sources
Run `bundle install` to install missing gems.
我是运行宁
ruby 2.2.0p0
rails4.2.0
我曾尝试四处寻找答案，但由于我对 ruby 和 rails 比较陌生，所以找不到答案。我尝试了其他线程的以下一些建议但无济于事：
sometimes we doesn’t get response from http://rubygems.org/ so it will shows error again try gem install rake to install latest version (10.0.4) of rake, and next bundle update rake to update the Gemfile.lock
(Could not find rake-10.0.4 in any of the sources (Bundler::GemNotFound))
和
Try to delete Gemfile.lock and bundle install
(Could not find rake-10.0.4 in any of the sources (Bundler::GemNotFound))
没有任何这些选项的运气。
宝石文件：
source 'https://rubygems.org'
gem 'rails', '4.2.0'
gem 'sqlite3'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
group :development, :test do
gem 'byebug'
gem 'web-console', '~> 2.0'
gem 'spring'
gem 'rspec-rails', '~> 2.0'
end
group :test do
gem 'capybara', '~>2.1.0'
end
Gemfile.lock
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.2.0)
actionpack (= 4.2.0)
actionview (= 4.2.0)
activejob (= 4.2.0)
mail (~> 2.5, >= 2.5.4)
rails-dom-testing (~> 1.0, >= 1.0.5)
actionpack (4.2.0)
actionview (= 4.2.0)
activesupport (= 4.2.0)
rack (~> 1.6.0)
rack-test (~> 0.6.2)
rails-dom-testing (~> 1.0, >= 1.0.5)
rails-html-sanitizer (~> 1.0, >= 1.0.1)
actionview (4.2.0)
activesupport (= 4.2.0)
builder (~> 3.1)
erubis (~> 2.7.0)
rails-dom-testing (~> 1.0, >= 1.0.5)
rails-html-sanitizer (~> 1.0, >= 1.0.1)
activejob (4.2.0)
activesupport (= 4.2.0)
globalid (>= 0.3.0)
activemodel (4.2.0)
activesupport (= 4.2.0)
builder (~> 3.1)
activerecord (4.2.0)
activemodel (= 4.2.0)
activesupport (= 4.2.0)
arel (~> 6.0)
activesupport (4.2.0)
i18n (~> 0.7)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.3, >= 0.3.4)
tzinfo (~> 1.1)
arel (6.0.0)
binding_of_caller (0.7.2)
debug_inspector (>= 0.0.1)
builder (3.2.2)
byebug (3.5.1)
columnize (~> 0.8)
debugger-linecache (~> 1.2)
slop (~> 3.6)
capybara (2.1.0)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
coffee-rails (4.1.0)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.3.0)
coffee-script-source
execjs
coffee-script-source (1.9.0)
columnize (0.9.0)
debug_inspector (0.0.2)
debugger-linecache (1.2.0)
diff-lcs (1.2.5)
erubis (2.7.0)
execjs (2.3.0)
globalid (0.3.0)
activesupport (>= 4.1.0)
hike (1.2.3)
i18n (0.7.0)
jbuilder (2.2.6)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-rails (4.0.3)
rails-dom-testing (~> 1.0)
railties (>= 4.2.0)
thor (>= 0.14, < 2.0)
json (1.8.2)
loofah (2.0.1)
nokogiri (>= 1.5.9)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mime-types (2.4.3)
mini_portile (0.6.2)
minitest (5.5.1)
multi_json (1.10.1)
nokogiri (1.6.6.2)
mini_portile (~> 0.6.0)
rack (1.6.0)
rack-test (0.6.3)
rack (>= 1.0)
rails (4.2.0)
actionmailer (= 4.2.0)
actionpack (= 4.2.0)
actionview (= 4.2.0)
activejob (= 4.2.0)
activemodel (= 4.2.0)
activerecord (= 4.2.0)
activesupport (= 4.2.0)
bundler (>= 1.3.0, < 2.0)
railties (= 4.2.0)
sprockets-rails
rails-deprecated_sanitizer (1.0.3)
activesupport (>= 4.2.0.alpha)
rails-dom-testing (1.0.5)
activesupport (>= 4.2.0.beta, < 5.0)
nokogiri (~> 1.6.0)
rails-deprecated_sanitizer (>= 1.0.1)
rails-html-sanitizer (1.0.1)
loofah (~> 2.0)
railties (4.2.0)
actionpack (= 4.2.0)
activesupport (= 4.2.0)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.4.2)
rdoc (4.2.0)
json (~> 1.4)
rspec-collection_matchers (1.1.2)
rspec-expectations (>= 2.99.0.beta1)
rspec-core (2.99.2)
rspec-expectations (2.99.2)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.99.3)
rspec-rails (2.99.0)
actionpack (>= 3.0)
activemodel (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-collection_matchers
rspec-core (~> 2.99.0)
rspec-expectations (~> 2.99.0)
rspec-mocks (~> 2.99.0)
sass (3.4.11)
sass-rails (5.0.1)
railties (>= 4.0.0, < 5.0)
sass (~> 3.1)
sprockets (>= 2.8, < 4.0)
sprockets-rails (>= 2.0, < 4.0)
tilt (~> 1.1)
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
slop (3.6.0)
spring (1.2.0)
sprockets (2.12.3)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.4)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
sqlite3 (1.3.10)
thor (0.19.1)
thread_safe (0.3.4)
tilt (1.4.1)
turbolinks (2.5.3)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.7.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
web-console (2.0.0)
activemodel (~> 4.0)
binding_of_caller (>= 0.7.2)
railties (~> 4.0)
sprockets-rails (>= 2.0, < 4.0)
xpath (2.0.0)
nokogiri (~> 1.3)
PLATFORMS
ruby
DEPENDENCIES
byebug
capybara (~> 2.1.0)
coffee-rails (~> 4.1.0)
jbuilder (~> 2.0)
jquery-rails
rails (= 4.2.0)
rspec-rails (~> 2.0)
sass-rails (~> 5.0)
sdoc (~> 0.4.0)
spring
sqlite3
turbolinks
uglifier (>= 1.3.0)
web-console (~> 2.0)
RubyGems 环境：
- RUBYGEMS VERSION: 2.4.5
- RUBY VERSION: 2.0.0 (2014-05-08 patchlevel 481) [universal.x86_64-darwin14]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/2.0.0
- RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- SPEC CACHE DIRECTORY: /volumes/ALEX/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: /Library/Ruby/Site
- RUBYGEMS PLATFORMS:
- ruby
- universal-darwin-14
- GEM PATHS:
- /Library/Ruby/Gems/2.0.0
- /volumes/ALEX/.gem/ruby/2.0.0
- /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/gems/2.0.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /usr/local/bin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
- /Users/alexmattson/.rbenv/versions/2.2.0/bin/
哪个gem
/usr/bin/gem
哪个包
/usr/bin/bundle
不确定挂断是什么，因为它被列为 Capybara 的依赖项，但您尝试过吗：
gem install xpath -v '2.0.0'
如果成功，请重新运行 安装您的捆绑包。
编辑：
看起来您正在尝试使用 RBENV，但是您的 gem 正在安装到您的系统版本 Ruby。首先，您永远不必在使用 RVM 或 RBENV 的 gem install 上使用 sudo。
摘自 RBENV 安装文档：https://github.com/sstephenson/rbenv
看起来第 3 步可能已被跳过，因此请从第 4 步 运行ning 进行验证：
type rbenv
#=> "rbenv is a function"
如果失败，您需要将 eval "$(rbenv init -)" 添加到 shell (.bash_profile、.bashrc 或 .zshrc，具体取决于 OS 和 shell 你是 运行ning).
确保重新启动终端以使任何 shell 更改生效。
运行 rbenv rehash 然后当你 运行 再次 gem 时你应该得到这样的东西：
which gem
#=> /Users/your-user-name/.rbenv/shims/gem
如果可行，运行 gem install bundle，cd 到您的项目目录，bundle install 应该可行。
看来我的 rbenv 安装有误。重新安装后它解决了问题。
是的，新版本的 RudyOnRails 与 Spring 有一些冲突。只需尝试在控制台中输入 spring stop 并重新运行 rails generate rspec:install
中了解更多信息
尝试 运行 'rails g rspec:install' 并保持 运行ning 出错：
Could not find xpath-2.0.0 in any of the sources
Run `bundle install` to install missing gems.
我是运行宁 ruby 2.2.0p0 rails4.2.0
我曾尝试四处寻找答案，但由于我对 ruby 和 rails 比较陌生，所以找不到答案。我尝试了其他线程的以下一些建议但无济于事：
sometimes we doesn’t get response from http://rubygems.org/ so it will shows error again try gem install rake to install latest version (10.0.4) of rake, and next bundle update rake to update the Gemfile.lock
(Could not find rake-10.0.4 in any of the sources (Bundler::GemNotFound))
和
Try to delete Gemfile.lock and bundle install
(Could not find rake-10.0.4 in any of the sources (Bundler::GemNotFound))
没有任何这些选项的运气。
宝石文件：
source 'https://rubygems.org'
gem 'rails', '4.2.0'
gem 'sqlite3'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
group :development, :test do
gem 'byebug'
gem 'web-console', '~> 2.0'
gem 'spring'
gem 'rspec-rails', '~> 2.0'
end
group :test do
gem 'capybara', '~>2.1.0'
end
Gemfile.lock
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.2.0)
actionpack (= 4.2.0)
actionview (= 4.2.0)
activejob (= 4.2.0)
mail (~> 2.5, >= 2.5.4)
rails-dom-testing (~> 1.0, >= 1.0.5)
actionpack (4.2.0)
actionview (= 4.2.0)
activesupport (= 4.2.0)
rack (~> 1.6.0)
rack-test (~> 0.6.2)
rails-dom-testing (~> 1.0, >= 1.0.5)
rails-html-sanitizer (~> 1.0, >= 1.0.1)
actionview (4.2.0)
activesupport (= 4.2.0)
builder (~> 3.1)
erubis (~> 2.7.0)
rails-dom-testing (~> 1.0, >= 1.0.5)
rails-html-sanitizer (~> 1.0, >= 1.0.1)
activejob (4.2.0)
activesupport (= 4.2.0)
globalid (>= 0.3.0)
activemodel (4.2.0)
activesupport (= 4.2.0)
builder (~> 3.1)
activerecord (4.2.0)
activemodel (= 4.2.0)
activesupport (= 4.2.0)
arel (~> 6.0)
activesupport (4.2.0)
i18n (~> 0.7)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.3, >= 0.3.4)
tzinfo (~> 1.1)
arel (6.0.0)
binding_of_caller (0.7.2)
debug_inspector (>= 0.0.1)
builder (3.2.2)
byebug (3.5.1)
columnize (~> 0.8)
debugger-linecache (~> 1.2)
slop (~> 3.6)
capybara (2.1.0)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
coffee-rails (4.1.0)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.3.0)
coffee-script-source
execjs
coffee-script-source (1.9.0)
columnize (0.9.0)
debug_inspector (0.0.2)
debugger-linecache (1.2.0)
diff-lcs (1.2.5)
erubis (2.7.0)
execjs (2.3.0)
globalid (0.3.0)
activesupport (>= 4.1.0)
hike (1.2.3)
i18n (0.7.0)
jbuilder (2.2.6)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-rails (4.0.3)
rails-dom-testing (~> 1.0)
railties (>= 4.2.0)
thor (>= 0.14, < 2.0)
json (1.8.2)
loofah (2.0.1)
nokogiri (>= 1.5.9)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mime-types (2.4.3)
mini_portile (0.6.2)
minitest (5.5.1)
multi_json (1.10.1)
nokogiri (1.6.6.2)
mini_portile (~> 0.6.0)
rack (1.6.0)
rack-test (0.6.3)
rack (>= 1.0)
rails (4.2.0)
actionmailer (= 4.2.0)
actionpack (= 4.2.0)
actionview (= 4.2.0)
activejob (= 4.2.0)
activemodel (= 4.2.0)
activerecord (= 4.2.0)
activesupport (= 4.2.0)
bundler (>= 1.3.0, < 2.0)
railties (= 4.2.0)
sprockets-rails
rails-deprecated_sanitizer (1.0.3)
activesupport (>= 4.2.0.alpha)
rails-dom-testing (1.0.5)
activesupport (>= 4.2.0.beta, < 5.0)
nokogiri (~> 1.6.0)
rails-deprecated_sanitizer (>= 1.0.1)
rails-html-sanitizer (1.0.1)
loofah (~> 2.0)
railties (4.2.0)
actionpack (= 4.2.0)
activesupport (= 4.2.0)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.4.2)
rdoc (4.2.0)
json (~> 1.4)
rspec-collection_matchers (1.1.2)
rspec-expectations (>= 2.99.0.beta1)
rspec-core (2.99.2)
rspec-expectations (2.99.2)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.99.3)
rspec-rails (2.99.0)
actionpack (>= 3.0)
activemodel (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-collection_matchers
rspec-core (~> 2.99.0)
rspec-expectations (~> 2.99.0)
rspec-mocks (~> 2.99.0)
sass (3.4.11)
sass-rails (5.0.1)
railties (>= 4.0.0, < 5.0)
sass (~> 3.1)
sprockets (>= 2.8, < 4.0)
sprockets-rails (>= 2.0, < 4.0)
tilt (~> 1.1)
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
slop (3.6.0)
spring (1.2.0)
sprockets (2.12.3)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.4)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
sqlite3 (1.3.10)
thor (0.19.1)
thread_safe (0.3.4)
tilt (1.4.1)
turbolinks (2.5.3)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.7.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
web-console (2.0.0)
activemodel (~> 4.0)
binding_of_caller (>= 0.7.2)
railties (~> 4.0)
sprockets-rails (>= 2.0, < 4.0)
xpath (2.0.0)
nokogiri (~> 1.3)
PLATFORMS
ruby
DEPENDENCIES
byebug
capybara (~> 2.1.0)
coffee-rails (~> 4.1.0)
jbuilder (~> 2.0)
jquery-rails
rails (= 4.2.0)
rspec-rails (~> 2.0)
sass-rails (~> 5.0)
sdoc (~> 0.4.0)
spring
sqlite3
turbolinks
uglifier (>= 1.3.0)
web-console (~> 2.0)
RubyGems 环境：
- RUBYGEMS VERSION: 2.4.5
- RUBY VERSION: 2.0.0 (2014-05-08 patchlevel 481) [universal.x86_64-darwin14]
- INSTALLATION DIRECTORY: /Library/Ruby/Gems/2.0.0
- RUBY EXECUTABLE: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
- EXECUTABLE DIRECTORY: /usr/bin
- SPEC CACHE DIRECTORY: /volumes/ALEX/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: /Library/Ruby/Site
- RUBYGEMS PLATFORMS:
- ruby
- universal-darwin-14
- GEM PATHS:
- /Library/Ruby/Gems/2.0.0
- /volumes/ALEX/.gem/ruby/2.0.0
- /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/gems/2.0.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /usr/local/bin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
- /Users/alexmattson/.rbenv/versions/2.2.0/bin/
哪个gem
/usr/bin/gem
哪个包
/usr/bin/bundle
不确定挂断是什么，因为它被列为 Capybara 的依赖项，但您尝试过吗：
gem install xpath -v '2.0.0'
如果成功，请重新运行 安装您的捆绑包。
编辑：
看起来您正在尝试使用 RBENV，但是您的 gem 正在安装到您的系统版本 Ruby。首先，您永远不必在使用 RVM 或 RBENV 的 gem install 上使用 sudo。
摘自 RBENV 安装文档：https://github.com/sstephenson/rbenv
看起来第 3 步可能已被跳过，因此请从第 4 步 运行ning 进行验证：
type rbenv
#=> "rbenv is a function"
如果失败，您需要将 eval "$(rbenv init -)" 添加到 shell (.bash_profile、.bashrc 或 .zshrc，具体取决于 OS 和 shell 你是 运行ning).
确保重新启动终端以使任何 shell 更改生效。
运行 rbenv rehash 然后当你 运行 再次 gem 时你应该得到这样的东西：
which gem
#=> /Users/your-user-name/.rbenv/shims/gem
如果可行，运行 gem install bundle，cd 到您的项目目录，bundle install 应该可行。
看来我的 rbenv 安装有误。重新安装后它解决了问题。
是的，新版本的 RudyOnRails 与 Spring 有一些冲突。只需尝试在控制台中输入 spring stop 并重新运行 rails generate rspec:install