耙中止！无法在 El Capitan 上加载此类文件 -- mysql2/mysql2
rake aborted! cannot load such file -- mysql2/mysql2 on El Capitan
从过去 2 周开始，我一直在尝试在 Mac 上设置我的代码。以前我使用 Ubuntu，设置代码从未如此困难。我几乎遵循了所有教程，但没有运气。请任何人指导我在 mac 上设置 RoR。完成所有教程后，我最终只遇到 mysql 错误。
rake aborted!
cannot load such file -- mysql2/mysql2
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `block in require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in `load_dependency'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/mysql2-0.3.14/lib/mysql2.rb:8:in `<top (required)>'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
/Users/sahil/Documents/work/ccprod/config/application.rb:9:in `<top (required)>'
/Users/sahil/Documents/work/ccprod/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)
如果需要任何其他信息，请告诉我。 MySQL 从 mysql 网站安装。其他详细信息：
Server version: 5.5.46 MySQL Community Server (GPL)
更新：
Gemfile.lock 文件:
GIT
remote: git://github.com/acumenbrands/acts_as_slugable.git
revision: 51c739b8dc283483e8cb68be2f48f0742dadbf3d
specs:
acts_as_slugable (1.0)
activerecord (>= 3.0.0)
GIT
remote: git://github.com/paneq/calendar_date_select.git
revision: 977048211b94599fe0f08eb37a481f3d69df48f6
specs:
calendar_date_select (1.16.2)
GIT
remote: git://github.com/rails/prototype_legacy_helper.git
revision: a2cd95c3e3c1a4f7a9566efdab5ce59c886cb05f
specs:
prototype_legacy_helper (0.0.0)
GIT
remote: https://github.com/Gonzih/respond_to_parent.git
revision: e7399307d70d00951916fd5e396c919cd7bb7f77
specs:
respond_to_parent (0.0.3)
rails (~> 3.2)
GIT
remote: https://github.com/jwhitehorn/acts_as_versioned.git
revision: 44dfe632ba8c97c786cbc172a2da18a41b17f668
specs:
acts_as_versioned (3.2.1)
activerecord
GEM
remote: http://rubygems.org/
specs:
actionmailer (3.2.14)
actionpack (= 3.2.14)
mail (~> 2.5.4)
actionpack (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
builder (~> 3.0.0)
erubis (~> 2.7.0)
journey (~> 1.0.4)
rack (~> 1.4.5)
rack-cache (~> 1.2)
rack-test (~> 0.6.1)
sprockets (~> 2.2.1)
active_scaffold (3.3.3)
rails (~> 3.2.0)
activemodel (3.2.14)
activesupport (= 3.2.14)
builder (~> 3.0.0)
activerecord (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
arel (~> 3.0.2)
tzinfo (~> 0.3.29)
activeresource (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
activesupport (3.2.14)
i18n (~> 0.6, >= 0.6.4)
multi_json (~> 1.0)
acts-as-taggable-on (3.0.0)
rails (>= 3, < 5)
addressable (2.3.5)
arel (3.0.3)
asset_sync (1.0.0)
activemodel
fog (>= 1.8.0)
atomic (1.1.14)
autoparse (0.3.3)
addressable (>= 2.3.1)
extlib (>= 0.9.15)
multi_json (>= 1.0.0)
aws-sdk (1.31.3)
json (~> 1.4)
nokogiri (>= 1.4.4)
uuidtools (~> 2.1)
axiom-types (0.1.0)
descendants_tracker (~> 0.0.3)
ice_nine (~> 0.11.0)
thread_safe (~> 0.1.3)
babosa (0.3.11)
bcrypt-ruby (3.1.2)
better_errors (1.1.0)
coderay (>= 1.0.0)
erubis (>= 2.6.6)
binding_of_caller (0.7.2)
debug_inspector (>= 0.0.1)
builder (3.0.4)
bullet (4.7.1)
activesupport
uniform_notifier (>= 1.4.0)
canonix (0.1.1)
carrierwave (0.9.0)
activemodel (>= 3.2.0)
activesupport (>= 3.2.0)
json (>= 1.7)
celluloid (0.15.2)
timers (~> 1.1.0)
chartkick (1.3.2)
chronic (0.10.2)
ckeditor (4.0.7)
mime-types
orm_adapter
climate_control (0.0.3)
activesupport (>= 3.0)
cocaine (0.5.3)
climate_control (>= 0.0.3, < 1.0)
coderay (1.1.0)
coercible (1.0.0)
descendants_tracker (~> 0.0.1)
coffee-rails (3.2.2)
coffee-script (>= 2.2.0)
railties (~> 3.2.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.6.3)
commonjs (0.2.7)
connection_pool (1.2.0)
crack (0.4.1)
safe_yaml (~> 0.9.0)
daemons (1.1.9)
debug_inspector (0.0.2)
delayed_job (4.0.0)
activesupport (>= 3.0, < 4.1)
delayed_job_active_record (4.0.0)
activerecord (>= 3.0, < 4.1)
delayed_job (>= 3.0, < 4.1)
delayed_job_web (1.2.10)
activerecord (> 3.0.0)
delayed_job (> 2.0.3)
sinatra (>= 1.4.4)
descendants_tracker (0.0.3)
devise (3.2.2)
bcrypt-ruby (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 3.2.6, < 5)
thread_safe (~> 0.1)
warden (~> 1.2.3)
devise-encryptable (0.1.2)
devise (>= 2.1.0)
dotenv (0.9.0)
dynamic_form (1.1.4)
equalizer (0.0.9)
erubis (2.7.0)
event-calendar (2.3.3)
eventmachine (1.0.3)
exception_notification (4.0.1)
actionmailer (>= 3.0.4)
activesupport (>= 3.0.4)
excon (0.31.0)
execjs (2.0.2)
extlib (0.9.16)
faraday (0.8.8)
multipart-post (~> 1.2.0)
fattr (2.2.1)
fog (1.19.0)
builder
excon (~> 0.31.0)
formatador (~> 0.2.0)
mime-types
multi_json (~> 1.0)
net-scp (~> 1.1)
net-ssh (>= 2.1.3)
nokogiri (~> 1.5)
ruby-hmac
font-awesome-rails (4.2.0.0)
railties (>= 3.2, < 5.0)
foreman (0.63.0)
dotenv (>= 0.7)
thor (>= 0.13.6)
formatador (0.2.4)
god (0.13.4)
google-api-client (0.6.4)
addressable (>= 2.3.2)
autoparse (>= 0.3.3)
extlib (>= 0.9.15)
faraday (~> 0.8.4)
jwt (>= 0.1.5)
launchy (>= 2.1.1)
multi_json (>= 1.0.0)
signet (~> 0.4.5)
uuidtools (>= 2.1.0)
grape (0.11.0)
activesupport
builder
hashie (>= 2.1.0)
multi_json (>= 1.3.2)
multi_xml (>= 0.5.2)
rack (>= 1.3.0)
rack-accept
rack-mount
virtus (>= 1.0.0)
hashie (3.4.0)
highline (1.6.20)
hike (1.2.3)
httpauth (0.2.0)
i18n (0.6.9)
ice_nine (0.11.1)
journey (1.0.4)
jquery-rails (3.0.4)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
jwt (0.1.8)
multi_json (>= 1.5)
launchy (2.4.2)
addressable (~> 2.3)
less (2.5.1)
commonjs (~> 0.2.7)
less-rails (2.5.0)
actionpack (>= 3.1)
less (~> 2.5.0)
libv8 (3.16.14.3)
macaddr (1.6.1)
systemu (~> 2.5.0)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
memcache-client (1.8.5)
mime-types (1.25.1)
mini_magick (3.7.0)
subexec (~> 0.2.1)
mono_logger (1.1.0)
multi_json (1.8.2)
multi_xml (0.5.5)
multipart-post (1.2.0)
mysql2 (0.3.14)
net-scp (1.1.2)
net-ssh (>= 2.6.5)
net-ssh (2.8.0)
nokogiri (1.5.9)
oauth (0.4.7)
oauth2 (0.9.2)
faraday (~> 0.8)
httpauth (~> 0.2)
jwt (~> 0.1.4)
multi_json (~> 1.0)
multi_xml (~> 0.5)
rack (~> 1.2)
options (2.3.0)
fattr
orm_adapter (0.5.0)
paperclip (3.5.2)
activemodel (>= 3.0.0)
activesupport (>= 3.0.0)
cocaine (~> 0.5.3)
mime-types
polyglot (0.3.3)
pr_geohash (1.0.0)
progress_bar (1.0.0)
highline (~> 1.6.1)
options (~> 2.3.0)
prototype-rails (3.2.1)
rails (~> 3.2)
rack (1.4.5)
rack-accept (0.4.5)
rack (>= 0.4)
rack-cache (1.2)
rack (>= 0.4)
rack-mount (0.8.3)
rack (>= 1.0.0)
rack-protection (1.5.3)
rack
rack-ssl (1.3.3)
rack
rack-test (0.6.2)
rack (>= 1.0)
rails (3.2.14)
actionmailer (= 3.2.14)
actionpack (= 3.2.14)
activerecord (= 3.2.14)
activeresource (= 3.2.14)
activesupport (= 3.2.14)
bundler (~> 1.0)
railties (= 3.2.14)
rails-dev-tweaks (0.6.1)
actionpack (~> 3.1)
railties (~> 3.1)
rails_autolink (1.1.5)
rails (> 3.1)
railties (3.2.14)
actionpack (= 3.2.14)
activesupport (= 3.2.14)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (>= 0.14.6, < 2.0)
rake (10.1.1)
rdoc (3.12.2)
json (~> 1.4)
redis (3.0.6)
redis-namespace (1.4.1)
redis (~> 3.0.4)
ref (1.0.5)
resque (1.25.2)
mono_logger (~> 1.0)
multi_json (~> 1.0)
redis-namespace (~> 1.3)
sinatra (>= 0.9.2)
vegas (~> 0.1.2)
resque-web (0.0.6)
coffee-rails
jquery-rails
resque
sass-rails
twitter-bootstrap-rails
roo (1.13.2)
nokogiri
rubyzip
spreadsheet (> 0.6.4)
rsolr (1.0.9)
builder (>= 2.1.2)
ruby-hmac (0.4.0)
ruby-ole (1.2.11.7)
ruby-saml (0.7.2)
canonix (= 0.1.1)
nokogiri
uuid (~> 2.3)
rubyzip (1.1.0)
safe_yaml (0.9.7)
sass (3.2.13)
sass-rails (3.2.6)
railties (~> 3.2.0)
sass (>= 3.1.10)
tilt (~> 1.3)
sentimental (1.0.3)
sidekiq (2.17.2)
celluloid (>= 0.15.2)
connection_pool (>= 1.0.0)
json
redis (>= 3.0.6)
redis-namespace (>= 1.3.1)
signet (0.4.5)
addressable (>= 2.2.3)
faraday (~> 0.8.1)
jwt (>= 0.1.5)
multi_json (>= 1.0.0)
simple_oauth (0.2.0)
sinatra (1.4.5)
rack (~> 1.4)
rack-protection (~> 1.4)
tilt (~> 1.3, >= 1.3.4)
spreadsheet (0.9.6)
ruby-ole (>= 1.0)
sprockets (2.2.2)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
subexec (0.2.3)
sunspot (2.1.0)
pr_geohash (~> 1.0)
rsolr (~> 1.0.7)
sunspot-queue (0.10.2)
sunspot_rails (>= 1.3.0)
sunspot_rails (2.1.0)
nokogiri
rails (>= 3)
sunspot (= 2.1.0)
sunspot_solr (2.1.0)
systemu (2.5.2)
therubyracer (0.12.1)
libv8 (~> 3.16.14.0)
ref
thin (1.6.1)
daemons (>= 1.0.9)
eventmachine (>= 1.0.0)
rack (>= 1.0.0)
thor (0.18.1)
thread_safe (0.1.3)
atomic
tilt (1.4.1)
timers (1.1.0)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
turbo-sprockets-rails3 (0.3.11)
railties (> 3.2.8, < 4.0.0)
sprockets (>= 2.2.0)
twitter-bootstrap-rails (2.2.8)
actionpack (>= 3.1)
execjs
rails (>= 3.1)
railties (>= 3.1)
tzinfo (0.3.38)
uglifier (2.4.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
uniform_notifier (1.4.0)
uuid (2.3.7)
macaddr (~> 1.0)
uuidtools (2.1.4)
vegas (0.1.11)
rack (>= 1.0.0)
virtus (1.0.4)
axiom-types (~> 0.1)
coercible (~> 1.0)
descendants_tracker (~> 0.0, >= 0.0.3)
equalizer (~> 0.0, >= 0.0.9)
warden (1.2.3)
rack (>= 1.0)
webmock (1.16.1)
addressable (>= 2.2.7)
crack (>= 0.3.2)
whenever (0.9.0)
activesupport (>= 2.3.4)
chronic (>= 0.6.3)
wicked_pdf (0.11.0)
rails
will_paginate (3.0.7)
will_paginate-bootstrap (1.0.1)
will_paginate (>= 3.0.3)
wkhtmltopdf-binary (0.9.9.3)
youtube_it (2.3.2)
builder
excon
faraday (~> 0.8)
json (~> 1.8.0)
nokogiri (~> 1.5.2)
oauth (~> 0.4.4)
oauth2 (~> 0.6)
simple_oauth (>= 0.1.5)
webmock
PLATFORMS
ruby
DEPENDENCIES
active_scaffold
acts-as-taggable-on
acts_as_slugable!
acts_as_versioned!
asset_sync
aws-sdk
babosa
better_errors
binding_of_caller
bullet
calendar_date_select!
carrierwave
chartkick
ckeditor
coderay
coffee-rails
delayed_job_active_record
delayed_job_web
devise
devise-encryptable
dynamic_form
event-calendar
exception_notification
font-awesome-rails
foreman
god
google-api-client
grape
jquery-rails
less-rails
memcache-client
mini_magick
mysql2 (>= 0.3)
nokogiri (= 1.5.9)
paperclip
progress_bar
prototype-rails
prototype_legacy_helper (= 0.0.0)!
rails (= 3.2.14)
rails-dev-tweaks (~> 0.6.1)
rails_autolink
respond_to_parent!
resque
resque-web
roo
ruby-saml
sass-rails
sentimental
sidekiq
sunspot-queue
sunspot_rails
sunspot_solr
therubyracer
thin
turbo-sprockets-rails3
uglifier
whenever
wicked_pdf
will_paginate (~> 3.0)
will_paginate-bootstrap
wkhtmltopdf-binary
youtube_it
database.yml:
# MySQL. Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
# gem install mysql2
#
# And be sure to use new-style password hashing:
# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: db_development
pool: 5
username: root
password: xyz
socket: /var/run/mysqld/mysqld.sock
在 Ubuntu 中用于设置 Rails 的步骤：
Installation of rvm and ruby in 12.04(Followed the link)
https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm
the steps are:
sudo apt-get update
sudo apt-get install curl
\curl -L https://get.rvm.io | bash -s stable
source ~/.rvm/scripts/rvm
rvm requirements(error will occur - not to worry. Go to the link provided to install the package-----)
rvm autolibs rvm_pkg
again give -> rvm requirements
rvm install 1.9.3
rvm use 1.9.3
get the code and do inside it
bundle install
later check with rails s.. if not working. do as follows
gem uninstall -i /home/user_xyz/.rvm/gems/ruby-1.9.3-p448@global bundler
then install
gem install bundler -v1.0.22
install git
sudo apt-get install git
then
bundle install --system
then again do
bundle install
If the bundle install --system is not working
gem install bundler --pre
again give
bundle install --system
It will ask to install the mysql2
install the mysql2
sudo apt-get install mysql2 -v0.3.13
again give
bundle install --system
then install the following for the mysql error
sudo apt-get install libmysql-ruby libmysqlclient-dev
After the mysql error. nokogiri error occurs
sudo apt-get install libxslt-dev libxml2-dev
sudo gem install nokogiri
finally give
bundle install --system
install netbeans
first install java package
sudo apt-get install openjdk-7-jdk
sh netbeans-7.0.1-ml-linux.sh
Proceed as follows(Due to erros do the following)
gem uninstall bundler
bundle install
rvm @global do gem uninstall bundler
gem update bundle
bundle install --system
Error for event machine(Check the link:
sudo apt-get install build-essential
install event machine
gem install eventmachine -v '1.0.3'
bundle install --system
install mysql
sudo apt-get install mysql-server
change the password in the config/database.yml for the mysql
解法：
设置步骤 Rails：
使用 brew:mysql Ver 14.14 Distrib 5.7.9, for
osx10.11 (x86_64) using EditLine wrapper 安装 MySQL。 mysql 安装后按照屏幕上给出的命令进行操作。
安装 rvm 的步骤如下：
\curl -L https://get.rvm.io | bash -s stable —ruby
rvm install 1.9.3
rvm use 1.9.3
rvm --default 1.9.3
已安装rails、gem install rails，当前版本为'4.2.5'.
(mysql2 gem version (0.3.20) woking with rails 4.1.4)
(mysql2 gem version (0.4.2) woking with rails 4.2.5)
(mysql2 gem version (0.3.20) woking with rails 3.2.14)
所以，现在我可以创建 运行 新的 rails 应用程序，但是如果我 运行 任何旧的 rails 应用程序构建在 Ubuntu ，即使 bundle install 成功完成，它也会继续抛出错误。我收到的错误消息：
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
错误消息不断变化，但都与 mysql2 gem 有关。我已经从我的旧项目中删除了 vendor/cache、Gemfile.lock，但仍然没有成功。
这个问题确实敲响了警钟，但我没有挖掘互联网和我的记忆，而是尝试了以下方法：安装最新的 mysql2 0.3 系列（撰写本文时为 0.3.20 )，并将其打包用于应用程序。
问题好像是最新的mysql2gem版本0.4不兼容Rails3.
您的 gem 版本无法更改，并且您希望拥有与生产版本相同的版本。为此，您只需从生产服务器复制 Gemfile.lock 文件，将其放在 Gemfile 旁边的本地文件夹中，然后执行 bundle install 命令。
请注意，如果您的 Gemfile 指定：
gem 'mysql2', '> 0.3'
然后 Bundler 将安装与 0.n 匹配的最新版本，其中 n >= 3。在撰写本文时，这导致 Bundler 获得一个 0.4 版本，该版本与您的 Rails 版本不兼容（Bundler 无法从您的 Gemfile 中推断出这一点）。您的解决方法是修改 Gemfile 的副本（并将其提交到您的项目可能是个好主意）：
gem 'mysql2', '> 0.3.13' # put here the actual version used in production
这样做，Bundler 将安装一个与 0.3.n、n >= 13.
匹配的版本
第一个问题是你的系统没有安装mysql2 gem（看来你已经解决了这个问题，所以你不用担心).
我不知道 Mac 的细节，但在 Windows 中，这意味着您在安装 gem.
--
关于错误：
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add gem 'mysql2' to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
...这个问题是因为Rails 4.2.0 - 4.2.4调用了错误的mysql2版本：
解决方案是更改任何损坏的应用程序的 Gemfile，将它们更新到最新版本的 Rails，最好使用 4-2-stable 分支 github:
#Gemfile
gem 'rails', '~> 4.2.5', git: "git://github.com/rails/rails.git", branch: '4-2-stable'
从过去 2 周开始，我一直在尝试在 Mac 上设置我的代码。以前我使用 Ubuntu，设置代码从未如此困难。我几乎遵循了所有教程，但没有运气。请任何人指导我在 mac 上设置 RoR。完成所有教程后，我最终只遇到 mysql 错误。
rake aborted!
cannot load such file -- mysql2/mysql2
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `block in require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in `load_dependency'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/mysql2-0.3.14/lib/mysql2.rb:8:in `<top (required)>'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
/Users/sahil/Documents/work/ccprod/config/application.rb:9:in `<top (required)>'
/Users/sahil/Documents/work/ccprod/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)
如果需要任何其他信息，请告诉我。 MySQL 从 mysql 网站安装。其他详细信息：
Server version: 5.5.46 MySQL Community Server (GPL)
更新： Gemfile.lock 文件:
GIT
remote: git://github.com/acumenbrands/acts_as_slugable.git
revision: 51c739b8dc283483e8cb68be2f48f0742dadbf3d
specs:
acts_as_slugable (1.0)
activerecord (>= 3.0.0)
GIT
remote: git://github.com/paneq/calendar_date_select.git
revision: 977048211b94599fe0f08eb37a481f3d69df48f6
specs:
calendar_date_select (1.16.2)
GIT
remote: git://github.com/rails/prototype_legacy_helper.git
revision: a2cd95c3e3c1a4f7a9566efdab5ce59c886cb05f
specs:
prototype_legacy_helper (0.0.0)
GIT
remote: https://github.com/Gonzih/respond_to_parent.git
revision: e7399307d70d00951916fd5e396c919cd7bb7f77
specs:
respond_to_parent (0.0.3)
rails (~> 3.2)
GIT
remote: https://github.com/jwhitehorn/acts_as_versioned.git
revision: 44dfe632ba8c97c786cbc172a2da18a41b17f668
specs:
acts_as_versioned (3.2.1)
activerecord
GEM
remote: http://rubygems.org/
specs:
actionmailer (3.2.14)
actionpack (= 3.2.14)
mail (~> 2.5.4)
actionpack (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
builder (~> 3.0.0)
erubis (~> 2.7.0)
journey (~> 1.0.4)
rack (~> 1.4.5)
rack-cache (~> 1.2)
rack-test (~> 0.6.1)
sprockets (~> 2.2.1)
active_scaffold (3.3.3)
rails (~> 3.2.0)
activemodel (3.2.14)
activesupport (= 3.2.14)
builder (~> 3.0.0)
activerecord (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
arel (~> 3.0.2)
tzinfo (~> 0.3.29)
activeresource (3.2.14)
activemodel (= 3.2.14)
activesupport (= 3.2.14)
activesupport (3.2.14)
i18n (~> 0.6, >= 0.6.4)
multi_json (~> 1.0)
acts-as-taggable-on (3.0.0)
rails (>= 3, < 5)
addressable (2.3.5)
arel (3.0.3)
asset_sync (1.0.0)
activemodel
fog (>= 1.8.0)
atomic (1.1.14)
autoparse (0.3.3)
addressable (>= 2.3.1)
extlib (>= 0.9.15)
multi_json (>= 1.0.0)
aws-sdk (1.31.3)
json (~> 1.4)
nokogiri (>= 1.4.4)
uuidtools (~> 2.1)
axiom-types (0.1.0)
descendants_tracker (~> 0.0.3)
ice_nine (~> 0.11.0)
thread_safe (~> 0.1.3)
babosa (0.3.11)
bcrypt-ruby (3.1.2)
better_errors (1.1.0)
coderay (>= 1.0.0)
erubis (>= 2.6.6)
binding_of_caller (0.7.2)
debug_inspector (>= 0.0.1)
builder (3.0.4)
bullet (4.7.1)
activesupport
uniform_notifier (>= 1.4.0)
canonix (0.1.1)
carrierwave (0.9.0)
activemodel (>= 3.2.0)
activesupport (>= 3.2.0)
json (>= 1.7)
celluloid (0.15.2)
timers (~> 1.1.0)
chartkick (1.3.2)
chronic (0.10.2)
ckeditor (4.0.7)
mime-types
orm_adapter
climate_control (0.0.3)
activesupport (>= 3.0)
cocaine (0.5.3)
climate_control (>= 0.0.3, < 1.0)
coderay (1.1.0)
coercible (1.0.0)
descendants_tracker (~> 0.0.1)
coffee-rails (3.2.2)
coffee-script (>= 2.2.0)
railties (~> 3.2.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.6.3)
commonjs (0.2.7)
connection_pool (1.2.0)
crack (0.4.1)
safe_yaml (~> 0.9.0)
daemons (1.1.9)
debug_inspector (0.0.2)
delayed_job (4.0.0)
activesupport (>= 3.0, < 4.1)
delayed_job_active_record (4.0.0)
activerecord (>= 3.0, < 4.1)
delayed_job (>= 3.0, < 4.1)
delayed_job_web (1.2.10)
activerecord (> 3.0.0)
delayed_job (> 2.0.3)
sinatra (>= 1.4.4)
descendants_tracker (0.0.3)
devise (3.2.2)
bcrypt-ruby (~> 3.0)
orm_adapter (~> 0.1)
railties (>= 3.2.6, < 5)
thread_safe (~> 0.1)
warden (~> 1.2.3)
devise-encryptable (0.1.2)
devise (>= 2.1.0)
dotenv (0.9.0)
dynamic_form (1.1.4)
equalizer (0.0.9)
erubis (2.7.0)
event-calendar (2.3.3)
eventmachine (1.0.3)
exception_notification (4.0.1)
actionmailer (>= 3.0.4)
activesupport (>= 3.0.4)
excon (0.31.0)
execjs (2.0.2)
extlib (0.9.16)
faraday (0.8.8)
multipart-post (~> 1.2.0)
fattr (2.2.1)
fog (1.19.0)
builder
excon (~> 0.31.0)
formatador (~> 0.2.0)
mime-types
multi_json (~> 1.0)
net-scp (~> 1.1)
net-ssh (>= 2.1.3)
nokogiri (~> 1.5)
ruby-hmac
font-awesome-rails (4.2.0.0)
railties (>= 3.2, < 5.0)
foreman (0.63.0)
dotenv (>= 0.7)
thor (>= 0.13.6)
formatador (0.2.4)
god (0.13.4)
google-api-client (0.6.4)
addressable (>= 2.3.2)
autoparse (>= 0.3.3)
extlib (>= 0.9.15)
faraday (~> 0.8.4)
jwt (>= 0.1.5)
launchy (>= 2.1.1)
multi_json (>= 1.0.0)
signet (~> 0.4.5)
uuidtools (>= 2.1.0)
grape (0.11.0)
activesupport
builder
hashie (>= 2.1.0)
multi_json (>= 1.3.2)
multi_xml (>= 0.5.2)
rack (>= 1.3.0)
rack-accept
rack-mount
virtus (>= 1.0.0)
hashie (3.4.0)
highline (1.6.20)
hike (1.2.3)
httpauth (0.2.0)
i18n (0.6.9)
ice_nine (0.11.1)
journey (1.0.4)
jquery-rails (3.0.4)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
jwt (0.1.8)
multi_json (>= 1.5)
launchy (2.4.2)
addressable (~> 2.3)
less (2.5.1)
commonjs (~> 0.2.7)
less-rails (2.5.0)
actionpack (>= 3.1)
less (~> 2.5.0)
libv8 (3.16.14.3)
macaddr (1.6.1)
systemu (~> 2.5.0)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
memcache-client (1.8.5)
mime-types (1.25.1)
mini_magick (3.7.0)
subexec (~> 0.2.1)
mono_logger (1.1.0)
multi_json (1.8.2)
multi_xml (0.5.5)
multipart-post (1.2.0)
mysql2 (0.3.14)
net-scp (1.1.2)
net-ssh (>= 2.6.5)
net-ssh (2.8.0)
nokogiri (1.5.9)
oauth (0.4.7)
oauth2 (0.9.2)
faraday (~> 0.8)
httpauth (~> 0.2)
jwt (~> 0.1.4)
multi_json (~> 1.0)
multi_xml (~> 0.5)
rack (~> 1.2)
options (2.3.0)
fattr
orm_adapter (0.5.0)
paperclip (3.5.2)
activemodel (>= 3.0.0)
activesupport (>= 3.0.0)
cocaine (~> 0.5.3)
mime-types
polyglot (0.3.3)
pr_geohash (1.0.0)
progress_bar (1.0.0)
highline (~> 1.6.1)
options (~> 2.3.0)
prototype-rails (3.2.1)
rails (~> 3.2)
rack (1.4.5)
rack-accept (0.4.5)
rack (>= 0.4)
rack-cache (1.2)
rack (>= 0.4)
rack-mount (0.8.3)
rack (>= 1.0.0)
rack-protection (1.5.3)
rack
rack-ssl (1.3.3)
rack
rack-test (0.6.2)
rack (>= 1.0)
rails (3.2.14)
actionmailer (= 3.2.14)
actionpack (= 3.2.14)
activerecord (= 3.2.14)
activeresource (= 3.2.14)
activesupport (= 3.2.14)
bundler (~> 1.0)
railties (= 3.2.14)
rails-dev-tweaks (0.6.1)
actionpack (~> 3.1)
railties (~> 3.1)
rails_autolink (1.1.5)
rails (> 3.1)
railties (3.2.14)
actionpack (= 3.2.14)
activesupport (= 3.2.14)
rack-ssl (~> 1.3.2)
rake (>= 0.8.7)
rdoc (~> 3.4)
thor (>= 0.14.6, < 2.0)
rake (10.1.1)
rdoc (3.12.2)
json (~> 1.4)
redis (3.0.6)
redis-namespace (1.4.1)
redis (~> 3.0.4)
ref (1.0.5)
resque (1.25.2)
mono_logger (~> 1.0)
multi_json (~> 1.0)
redis-namespace (~> 1.3)
sinatra (>= 0.9.2)
vegas (~> 0.1.2)
resque-web (0.0.6)
coffee-rails
jquery-rails
resque
sass-rails
twitter-bootstrap-rails
roo (1.13.2)
nokogiri
rubyzip
spreadsheet (> 0.6.4)
rsolr (1.0.9)
builder (>= 2.1.2)
ruby-hmac (0.4.0)
ruby-ole (1.2.11.7)
ruby-saml (0.7.2)
canonix (= 0.1.1)
nokogiri
uuid (~> 2.3)
rubyzip (1.1.0)
safe_yaml (0.9.7)
sass (3.2.13)
sass-rails (3.2.6)
railties (~> 3.2.0)
sass (>= 3.1.10)
tilt (~> 1.3)
sentimental (1.0.3)
sidekiq (2.17.2)
celluloid (>= 0.15.2)
connection_pool (>= 1.0.0)
json
redis (>= 3.0.6)
redis-namespace (>= 1.3.1)
signet (0.4.5)
addressable (>= 2.2.3)
faraday (~> 0.8.1)
jwt (>= 0.1.5)
multi_json (>= 1.0.0)
simple_oauth (0.2.0)
sinatra (1.4.5)
rack (~> 1.4)
rack-protection (~> 1.4)
tilt (~> 1.3, >= 1.3.4)
spreadsheet (0.9.6)
ruby-ole (>= 1.0)
sprockets (2.2.2)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
subexec (0.2.3)
sunspot (2.1.0)
pr_geohash (~> 1.0)
rsolr (~> 1.0.7)
sunspot-queue (0.10.2)
sunspot_rails (>= 1.3.0)
sunspot_rails (2.1.0)
nokogiri
rails (>= 3)
sunspot (= 2.1.0)
sunspot_solr (2.1.0)
systemu (2.5.2)
therubyracer (0.12.1)
libv8 (~> 3.16.14.0)
ref
thin (1.6.1)
daemons (>= 1.0.9)
eventmachine (>= 1.0.0)
rack (>= 1.0.0)
thor (0.18.1)
thread_safe (0.1.3)
atomic
tilt (1.4.1)
timers (1.1.0)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
turbo-sprockets-rails3 (0.3.11)
railties (> 3.2.8, < 4.0.0)
sprockets (>= 2.2.0)
twitter-bootstrap-rails (2.2.8)
actionpack (>= 3.1)
execjs
rails (>= 3.1)
railties (>= 3.1)
tzinfo (0.3.38)
uglifier (2.4.0)
execjs (>= 0.3.0)
json (>= 1.8.0)
uniform_notifier (1.4.0)
uuid (2.3.7)
macaddr (~> 1.0)
uuidtools (2.1.4)
vegas (0.1.11)
rack (>= 1.0.0)
virtus (1.0.4)
axiom-types (~> 0.1)
coercible (~> 1.0)
descendants_tracker (~> 0.0, >= 0.0.3)
equalizer (~> 0.0, >= 0.0.9)
warden (1.2.3)
rack (>= 1.0)
webmock (1.16.1)
addressable (>= 2.2.7)
crack (>= 0.3.2)
whenever (0.9.0)
activesupport (>= 2.3.4)
chronic (>= 0.6.3)
wicked_pdf (0.11.0)
rails
will_paginate (3.0.7)
will_paginate-bootstrap (1.0.1)
will_paginate (>= 3.0.3)
wkhtmltopdf-binary (0.9.9.3)
youtube_it (2.3.2)
builder
excon
faraday (~> 0.8)
json (~> 1.8.0)
nokogiri (~> 1.5.2)
oauth (~> 0.4.4)
oauth2 (~> 0.6)
simple_oauth (>= 0.1.5)
webmock
PLATFORMS
ruby
DEPENDENCIES
active_scaffold
acts-as-taggable-on
acts_as_slugable!
acts_as_versioned!
asset_sync
aws-sdk
babosa
better_errors
binding_of_caller
bullet
calendar_date_select!
carrierwave
chartkick
ckeditor
coderay
coffee-rails
delayed_job_active_record
delayed_job_web
devise
devise-encryptable
dynamic_form
event-calendar
exception_notification
font-awesome-rails
foreman
god
google-api-client
grape
jquery-rails
less-rails
memcache-client
mini_magick
mysql2 (>= 0.3)
nokogiri (= 1.5.9)
paperclip
progress_bar
prototype-rails
prototype_legacy_helper (= 0.0.0)!
rails (= 3.2.14)
rails-dev-tweaks (~> 0.6.1)
rails_autolink
respond_to_parent!
resque
resque-web
roo
ruby-saml
sass-rails
sentimental
sidekiq
sunspot-queue
sunspot_rails
sunspot_solr
therubyracer
thin
turbo-sprockets-rails3
uglifier
whenever
wicked_pdf
will_paginate (~> 3.0)
will_paginate-bootstrap
wkhtmltopdf-binary
youtube_it
database.yml:
# MySQL. Versions 4.1 and 5.0 are recommended.
#
# Install the MySQL driver:
# gem install mysql2
#
# And be sure to use new-style password hashing:
# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: db_development
pool: 5
username: root
password: xyz
socket: /var/run/mysqld/mysqld.sock
在 Ubuntu 中用于设置 Rails 的步骤：
Installation of rvm and ruby in 12.04(Followed the link)
https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm
the steps are:
sudo apt-get update
sudo apt-get install curl
\curl -L https://get.rvm.io | bash -s stable
source ~/.rvm/scripts/rvm
rvm requirements(error will occur - not to worry. Go to the link provided to install the package-----)
rvm autolibs rvm_pkg
again give -> rvm requirements
rvm install 1.9.3
rvm use 1.9.3
get the code and do inside it
bundle install
later check with rails s.. if not working. do as follows
gem uninstall -i /home/user_xyz/.rvm/gems/ruby-1.9.3-p448@global bundler
then install
gem install bundler -v1.0.22
install git
sudo apt-get install git
then
bundle install --system
then again do
bundle install
If the bundle install --system is not working
gem install bundler --pre
again give
bundle install --system
It will ask to install the mysql2
install the mysql2
sudo apt-get install mysql2 -v0.3.13
again give
bundle install --system
then install the following for the mysql error
sudo apt-get install libmysql-ruby libmysqlclient-dev
After the mysql error. nokogiri error occurs
sudo apt-get install libxslt-dev libxml2-dev
sudo gem install nokogiri
finally give
bundle install --system
install netbeans
first install java package
sudo apt-get install openjdk-7-jdk
sh netbeans-7.0.1-ml-linux.sh
Proceed as follows(Due to erros do the following)
gem uninstall bundler
bundle install
rvm @global do gem uninstall bundler
gem update bundle
bundle install --system
Error for event machine(Check the link:
sudo apt-get install build-essential
install event machine
gem install eventmachine -v '1.0.3'
bundle install --system
install mysql
sudo apt-get install mysql-server
change the password in the config/database.yml for the mysql
解法： 设置步骤 Rails：
使用 brew:
mysql Ver 14.14 Distrib 5.7.9, for osx10.11 (x86_64) using EditLine wrapper安装 MySQL。 mysql 安装后按照屏幕上给出的命令进行操作。安装 rvm 的步骤如下：
\curl -L https://get.rvm.io | bash -s stable —rubyrvm install 1.9.3rvm use 1.9.3rvm --default 1.9.3已安装rails、
gem install rails，当前版本为'4.2.5'.
(mysql2 gem version (0.3.20) woking with rails 4.1.4)
(mysql2 gem version (0.4.2) woking with rails 4.2.5)
(mysql2 gem version (0.3.20) woking with rails 3.2.14)
所以，现在我可以创建 运行 新的 rails 应用程序，但是如果我 运行 任何旧的 rails 应用程序构建在 Ubuntu ，即使 bundle install 成功完成，它也会继续抛出错误。我收到的错误消息：
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
错误消息不断变化，但都与 mysql2 gem 有关。我已经从我的旧项目中删除了 vendor/cache、Gemfile.lock，但仍然没有成功。
这个问题确实敲响了警钟，但我没有挖掘互联网和我的记忆，而是尝试了以下方法：安装最新的 mysql2 0.3 系列（撰写本文时为 0.3.20 )，并将其打包用于应用程序。
问题好像是最新的mysql2gem版本0.4不兼容Rails3.
您的 gem 版本无法更改，并且您希望拥有与生产版本相同的版本。为此，您只需从生产服务器复制 Gemfile.lock 文件，将其放在 Gemfile 旁边的本地文件夹中，然后执行 bundle install 命令。
请注意，如果您的 Gemfile 指定：
gem 'mysql2', '> 0.3'
然后 Bundler 将安装与 0.n 匹配的最新版本，其中 n >= 3。在撰写本文时，这导致 Bundler 获得一个 0.4 版本，该版本与您的 Rails 版本不兼容（Bundler 无法从您的 Gemfile 中推断出这一点）。您的解决方法是修改 Gemfile 的副本（并将其提交到您的项目可能是个好主意）：
gem 'mysql2', '> 0.3.13' # put here the actual version used in production
这样做，Bundler 将安装一个与 0.3.n、n >= 13.
第一个问题是你的系统没有安装mysql2 gem（看来你已经解决了这个问题，所以你不用担心).
我不知道 Mac 的细节，但在 Windows 中，这意味着您在安装 gem.
--
关于错误：
Gem::LoadError: Specified 'mysql2' for database adapter, but the gem is not loaded. Add gem 'mysql2' to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).
...这个问题是因为Rails 4.2.0 - 4.2.4调用了错误的mysql2版本：
解决方案是更改任何损坏的应用程序的 Gemfile，将它们更新到最新版本的 Rails，最好使用 4-2-stable 分支 github:
#Gemfile
gem 'rails', '~> 4.2.5', git: "git://github.com/rails/rails.git", branch: '4-2-stable'