we are trying to integrate an existing mysql database in our jruby on rails application.
Our client provided us with a bare bone rails skeleton, which was not configured for a sepcific database. We were later provided with a sql database and were asked to integerate it in our application using mysql. We started out by creating a database.yml file with the necessairy information. We then executed the rake db:create command, which resulted in following error message below. Any suggestions on what we're doing wrong? We're helpless. Thx in advance.
$ rake db:create --trace
rake aborted!
undefined method `each' for nil:NilClass
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activerecord-jdbc-adapter-1.2.2/lib/arjdbc/jdbc/jdbc.rake:15:in `redefine_task'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activerecord-jdbc-adapter-1.2.2/lib/arjdbc/jdbc/jdbc.rake:23:in `(root)'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/task_manager.rb:207:in `in_namespace'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/dsl_definition.rb:102:in `namespace'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activerecord-jdbc-adapter-1.2.2/lib/arjdbc/jdbc/jdbc.rake:22:in `(root)'
org/jruby/RubyKernel.java:1052:in `load'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activerecord-jdbc-adapter-1.2.2/lib/arjdbc/jdbc/jdbc.rake:234:in `load'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:640:in `new_constants_in'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:639:in `new_constants_in'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:223:in `load_dependency'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/activesupport-3.1.0/lib/active_support/dependencies.rb:234:in `load'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in `load_rakefile'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/default_loader.rb:6:in `load'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:569:in `load_imports'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:508:in `raw_load_rakefile'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:82:in `load_rakefile'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:81:in `load_rakefile'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:65:in `run'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/gems/rake-0.9.2.2/bin/rake:33:in `(root)'
org/jruby/RubyKernel.java:1052:in `load'
/Users/rath_rio/.rvm/gems/jruby-1.6.6#webgrouper/bin/rake:19:in `(root)'
our system specification:
Java SE 6
JRuby 1.6.6
Rails 3.1
we use following gems for our datebase:
gem 'mysql2', '~>0.3.0'
gem "jdbc-mysql", "~> 5.1.13"
gem "activerecord-jdbc-adapter", "~> 1.2.2"
gem "activerecord-jdbcmysql-adapter", "~> 1.2.2"
our database.yml file:
development:
database: webgrouper_development
adapter: jdbcmysql
encoding: utf8
reconnect: true
pool: 5
username: root
password:
host: 127.0.0.1
test:
database: webgrouper_test
adapter: jdbcmysql
encoding: utf8
reconnect: false
pool: 5
username: root
password:
host: 127.0.0.1
production:
database: webgrouper_production
adapter: jdbcmysql
encoding: utf8
reconnect: false
pool: 5
username: root
password:
host: 127.0.0.1
What I can say so far, having run across this while troubleshooting something else and happening to have the relevant source code up, is that this rake task is dying because it is attempting to iterate over the actions for the current task, but the set of actions is nil.
Understanding exactly what was done wrong in the terse and uncommented code in there is difficult. Something is making this incredibly fragile system break down. I have an odd wild guess. What happens if you put "adapter: jdbcmysql" as the first part of each database stanza in your YML, instead of "database: webgrouper_production"?
Related
Am trying to create a model in rails 5 and have installed mysql-community-server. Also I have installed both mysql and mysql2 gem's. But when i run rails generate model Book getting below error,
[root#server-linux library]# rails generate model Book
/root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/dependencies.rb:293:in `require': Could not load 'active_record/connection_adapters/mysql_adapter'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile. (LoadError)
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/dependencies.rb:293:in `block in require'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/dependencies.rb:259:in `load_dependency'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/dependencies.rb:293:in `require'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0/lib/active_record/connection_adapters/connection_specification.rb:174:in `spec'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0/lib/active_record/connection_handling.rb:53:in `establish_connection'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0/lib/active_record/railtie.rb:125:in `block (2 levels) in <class:Railtie>'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:38:in `instance_eval'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:38:in `execute_hook'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:44:in `each'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-5.0.0/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0/lib/active_record/base.rb:324:in `<module:ActiveRecord>'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-5.0.0/lib/active_record/base.rb:24:in `<top (required)>'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:338:in `active_record_configured?'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:259:in `disconnect_database'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:97:in `preload'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:143:in `serve'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:131:in `block in run'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `loop'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application.rb:125:in `run'
from /root/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/spring-1.7.2/lib/spring/application/boot.rb:19:in `<top (required)>'
from /root/.rbenv/versions/2.2.3/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /root/.rbenv/versions/2.2.3/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'
[root#server-linux library]#
database.yaml:
[root#server-linux library]# cat config/database.yml
development:
adapter: mysql2
database: library_development
username: root
password: [password]
host: localhost
test:
adapter: mysql2
database: library_test
username: root
password: [password]
host: localhost
production:
adapter: mysql2
database: library_production
username: root
password: [password]
host: localhost
[root#server-linux library]#
Version details:
[root#server-linux library]# rails -v
Rails 5.0.0
[root#karthick-linux library]# gem list | grep mysql
activerecord-mysql-adapter (0.0.1)
mysql (2.9.1)
mysql2 (0.4.4)
[root#server-linux library]#
Even I created application with the command rails new library -d mysql
Any idea why its failing with mysql adapter connection.
Did you try installing bundler. I am guessing that mysql2 gem is installed for different version of ruby and not your current version of ruby. Try installing bundler first.
gem install bundler
bundle install
rails db:migrate
rails g model book
Also you won't need mysql gem, you can just delete it and use mysql2 as adapter in your database.yml file.
Check your Gem file
in your gem file find gem 'mysql2'
if not found please add gem 'mysql2' then run bundle install and restart server.
This question already has answers here:
mysql2 gem compiled for wrong mysql client library
(8 answers)
Closed 8 years ago.
I want to run a rails application on my mac osx 10.9.3 and got following error:
/Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/mysql2-0.3.16/lib/mysql2.rb:8:in `require': Incorrect MySQL client library version! This gem was compiled for 5.5.23 but the client library is 5.6.19. (RuntimeError)
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/mysql2-0.3.16/lib/mysql2.rb:8:in `<top (required)>'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:76:in `require'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:72:in `each'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:72:in `block in require'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:61:in `each'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler/runtime.rb:61:in `require'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/bundler-1.6.3/lib/bundler.rb:132:in `require'
from /Users/home/workSpace/RubyOnRails/simple_cms/config/application.rb:7:in `<top (required)>'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:79:in `require'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:79:in `block in server'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:76:in `tap'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:76:in `server'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.1.1/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
from /Users/home/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/railties-4.1.1/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:8:in `require'
from bin/rails:8:in `<main>'
I installed mysql with hombrew and it's working perfectly. I also use rbenv.
gem 'rails', '4.1.1'
gem 'mysql2'
and this is my databas.yml file
development:
adapter: mysql2
encoding: utf8
database: simple_cms_development
pool: 5
username: root
password: somepassword
socket: /tmp/mysql.sock
test:
adapter: mysql2
encoding: utf8
database: simple_cms_test
pool: 5
username: root
password: somepassword
socket: /tmp/mysql.sock
production:
adapter: mysql2
encoding: utf8
database: simple_cms_production
pool: 5
username: root
password: somepassword
socket: /tmp/mysql.sock
How can I solve it?
Headers
I was going to suggest using mysql C-connector (the recommended answer in the comments confirmed this)
We've written a tutorial on how to do this (for the typical unable to build native extensions error), but same idea
--
C-Connector
Basically, your gem just needs to interface with your system; it doesn't need need to do anything buy send queries & process the responses to your db
This means if you have a problem with your mysql version's compatibility, you'll be best installing & using a separate batch of header files (for your gem):
The way to do this is to download & install the mysql c-connector
files - IMPORTANT - GET THE 32 BIT VERSION (you can either use
the installer or unzip the files)
Once installed, you should install the gem with the following command:
gem install mysql2 --platform=ruby -- ‘--with-mysql-dir="YOUR_MYSQL_DIR”’
This should install the gem for you, which will allow you to interface with the MYSQL server
I'm a total newbie with RoR, so please forgive my density on this topic.
I'm trying to start the WEBrick application server using the rails server command, but I get the following error when I run it in my app directory /Users/Grace/Sites/simple_cms
I'm running the following:
Rails 3.2.13
ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-darwin12.3.0]
OSX 10.8.3
Here's the error stack:
Grace$ rails server
=> Booting WEBrick
=> Rails 3.2.13 application starting in development on http://localhost:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
/Users/Grace/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/psych.rb:205:in `parse': (<unknown>): could not find expected ':' while scanning a simple key at line 18 column 3 (Psych::SyntaxError)
from /Users/Grace/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/psych.rb:205:in `parse_stream'
from /Users/Grace/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/psych.rb:153:in `parse'
from /Users/Grace/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/psych.rb:129:in `load'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/application/configuration.rb:115:in `database_configuration'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/railtie.rb:78:in `block (2 levels) in <class:Railtie>'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/base.rb:720:in `<top (required)>'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/activerecord-3.2.13/lib/active_record/railtie.rb:88:in `block in <class:Railtie>'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/Grace/Sites/simple_cms/config/environment.rb:5:in `<top (required)>'
from /Users/Grace/Sites/simple_cms/config.ru:3:in `require'
from /Users/Grace/Sites/simple_cms/config.ru:3:in `block in <main>'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:51:in `instance_eval'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:51:in `initialize'
from /Users/Grace/Sites/simple_cms/config.ru:in `new'
from /Users/Grace/Sites/simple_cms/config.ru:in `<main>'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:40:in `eval'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/builder.rb:40:in `parse_file'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/server.rb:200:in `app'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands/server.rb:46:in `app'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/server.rb:304:in `wrapped_app'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/rack-1.4.5/lib/rack/server.rb:254:in `start'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands/server.rb:70:in `start'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands.rb:55:in `block in <top (required)>'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands.rb:50:in `tap'
from /Users/Grace/.rvm/gems/ruby-2.0.0-p0/gems/railties-3.2.13/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
When I open up the psych.rb file I see this:
require 'psych.so'
require 'psych/nodes'
require 'psych/streaming'
require 'psych/visitors'
require 'psych/handler'
require 'psych/tree_builder'
require 'psych/parser'
require 'psych/omap'
require 'psych/set'
require 'psych/coder'
require 'psych/core_ext'
require 'psych/deprecated'
require 'psych/stream'
require 'psych/json/tree_builder'
require 'psych/json/stream'
require 'psych/handlers/document_stream'
###
# = Overview
#
# Psych is a YAML parser and emitter.
# Psych leverages libyaml [Home page: http://pyyaml.org/wiki/LibYAML]
# or [Git repo: https://github.com/zerotao/libyaml] for its YAML parsing
Please help! Thank you :)
Go into the database.yml file in your new rails project (if this is Lynda.com, that means it's the simple_cms project).
Make sure the keys on the left are followed by a colon, then a space, like this:
password: secret_phrase
And not like this, with no space after the colon:
password:secret_phrase
I also had the same problem and even though the indentations and spacings were correct in the database.yml I was still getting the errors. In my case the indentations were incorrect in the corresponding lines in application.yml.
Very good #Steel, but remove the space does not solve (increases the number of errors). But really this error indicates that the problem is in the database.yml.
In my case I had two statements socket.
Indentation of the code is important.
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: xxx
pool: 5
username: xxx
password: xxx
socket: /socket_adress
test:
adapter: mysql2
encoding: utf8
reconnect: false
database: xxx
pool: 5
username: xxx
password: xxx
socket: /socket_adress
production:
adapter: mysql2
encoding: utf8
reconnect: false
database: xxx
pool: 5
username: xxx
password: xxx
socket: /socket_adress
Derek-MacBook-Pro:example derek$ rails g
/Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle: dlopen(/Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)
Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle
Reason: image not found - /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle
from /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2.rb:9
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler/runtime.rb:68:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler/runtime.rb:68:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler/runtime.rb:66:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler/runtime.rb:66:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler/runtime.rb:55:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler/runtime.rb:55:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.11/lib/bundler.rb:120:in `require'
from /Users/derek/example/config/application.rb:7
from /Library/Ruby/Gems/1.8/gems/railties-3.0.10/lib/rails/commands.rb:15:in `require'
from /Library/Ruby/Gems/1.8/gems/railties-3.0.10/lib/rails/commands.rb:15
from script/rails:6:in `require'
from script/rails:6
I have MySQL installed and running in OS X Lion. I have the gem installed. It appears in the gem list (version 0.3.7). What is wrong?
Edit:
Here, I will add my database.yml file. It says the adapter is mysql2 in every environment type. Maybe this will help:
# 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: example_development
pool: 5
username: root
password:
host: localhost
# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
adapter: mysql2
encoding: utf8
reconnect: false
database: example_test
pool: 5
username: root
password:
host: localhost
production:
adapter: mysql2
encoding: utf8
reconnect: false
database: example_production
pool: 5
username: root
password:
host: localhost
Make sure that 'mysql2' is the db adapter specified in your database.yml
Make sure that 'mysql2' is the gem specified in your Gemfile
I remember that the error for one of those two things missing is really unintuitive and sounds like it's describing the other... so, just make sure both are correct :-)
Hey everyone! I am having trouble setting up a MySQL database for my rails application. Here are the contents of my database.yml file:
development:
adapter: mysql
encoding: utf8
reconnect: false
database: app_name_dev
pool: 5
username: root
password:
socket: /tmp/mysql.sock
# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
adapter: mysql
encoding: utf8
reconnect: false
database: app_name_test
pool: 5
username: root
password:
socket: /tmp/mysql.sock
production:
adapter: mysql
encoding: utf8
reconnect: false
database: app_name_pro
pool: 5
username: root
password:
socket: /tmp/mysql.sock
I also replaced gem sqlite3 with gem mysql in my gemfile and ran bundle install. Now I am trying to create the database for the first time with rake db:create. I am getting the following error:
$ rake db:create --trace
(in c:/Users/Kvass/documents/programming/ruby/app_name)
** Invoke db:create (first_time)
** Invoke db:load_config (first_time)
** Invoke rails_env (first_time)
** Execute rails_env
** Execute db:load_config
rake aborted!
couldn't parse YAML at line 1 column 0
c:/Ruby192/lib/ruby/1.9.1/psych.rb:148:in `parse'
c:/Ruby192/lib/ruby/1.9.1/psych.rb:148:in `parse_stream'
c:/Ruby192/lib/ruby/1.9.1/psych.rb:119:in `parse'
c:/Ruby192/lib/ruby/1.9.1/psych.rb:106:in `load'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.7/lib/rails/application/configu
ration.rb:88:in `database_configuration'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/activerecord-3.0.7/lib/active_record/railtie
s/databases.rake:4:in `block (2 levels) in <top (required)>'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:636:in `call'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:636:in `block in exec
ute'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:631:in `each'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:597:in `block in invo
ke_with_call_chain'
c:/Ruby192/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_c
all_chain'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:607:in `block in invo
ke_prerequisites'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:604:in `each'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prereq
uisites'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:596:in `block in invo
ke_with_call_chain'
c:/Ruby192/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_c
all_chain'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2029:in `block (2 lev
els) in top_level'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2029:in `block in top
_level'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exc
eption_handling'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2001:in `block in run
'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exc
eption_handling'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
c:/Ruby192/lib/ruby/gems/1.9.1/gems/rake-0.8.7/bin/rake:31:in `<top (required)>'
c:/Ruby192/bin/rake:19:in `load'
c:/Ruby192/bin/rake:19:in `<main>'
Can someone please explain what I am doing wrong? Thanks!
The MySQL server had not been running on my machine when I tried to run rake db:create. Careless mistake :P
Try using this as your database.yml:
# SQLite version 3.x
# gem install sqlite3-ruby (not necessary on OS X Leopard)
development:
adapter: sqlite3
database: db/development.sqlite3
pool: 5
timeout: 5000
# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test: &TEST
adapter: sqlite3
database: db/test.sqlite3
pool: 5
timeout: 5000
production:
adapter: sqlite3
database: db/production.sqlite3
pool: 5
timeout: 5000
cucumber:
<<: *TEST
In my development process i use this config:
development:
adapter: mysql2
database: my_db
encoding: utf8
username: rails
password: rails
host: localhost