与RVM

我最近升级到Rails 3，创造了使用Rails 3.0.3新的应用程序安装mysql2在Snow Leopard上的宝石为Rails 3，但我一直收到错误与RVM

 
Macintosh:$ rails server 
=> Booting WEBrick 
=> Rails 3.0.3 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
[2010-11-28 11:32:47] INFO WEBrick 1.3.1 
[2010-11-28 11:32:47] INFO ruby 1.8.7 (2010-04-19) [i686-darwin10.4.0] 
[2010-11-28 11:32:47] INFO WEBrick::HTTPServer#start: pid=1055 port=3000 


Started GET "/" for 127.0.0.1 at Sun Nov 28 11:32:52 +0000 2010 

RuntimeError (!!! Missing the mysql2 gem. Add it to your Gemfile: gem 'mysql2'):

我有一个64位机。错误只在文档上，看起来像是正确安装了宝石。

 
Macintosh:$ env ARCHFLAGS="-arch i386" gem install mysql2 -- --with-mysql-config=/usr/local/mysql/bin/mysql_config 
Building native extensions. This could take a while... 
Successfully installed mysql2-0.2.6 
1 gem installed 
Installing ri documentation for mysql2-0.2.6... 
Enclosing class/module 'mMysql2' for class Client not known 
Building YARD (yri) index for mysql2-0.2.6... 
Installing RDoc documentation for mysql2-0.2.6... 
Enclosing class/module 'mMysql2' for class Client not known

我已经添加了宝石在我的Gemfile

 
source 'http://rubygems.org' 

gem 'rails', '3.0.3' 
gem 'mysql2' 
gem 'sqlite3-ruby', :require => 'sqlite3'

我Gemfile.lock的看起来像这样

 
GEM 
    remote: http://rubygems.org/ 
    specs: 
    abstract (1.0.0) 
    actionmailer (3.0.3) 
     actionpack (= 3.0.3) 
     mail (~> 2.2.9) 
    actionpack (3.0.3) 
     activemodel (= 3.0.3) 
     activesupport (= 3.0.3) 
     builder (~> 2.1.2) 
     erubis (~> 2.6.6) 
     i18n (~> 0.4) 
     rack (~> 1.2.1) 
     rack-mount (~> 0.6.13) 
     rack-test (~> 0.5.6) 
     tzinfo (~> 0.3.23) 
    activemodel (3.0.3) 
     activesupport (= 3.0.3) 
     builder (~> 2.1.2) 
     i18n (~> 0.4) 
    activerecord (3.0.3) 
     activemodel (= 3.0.3) 
     activesupport (= 3.0.3) 
     arel (~> 2.0.2) 
     tzinfo (~> 0.3.23) 
    activeresource (3.0.3) 
     activemodel (= 3.0.3) 
     activesupport (= 3.0.3) 
    activesupport (3.0.3) 
    arel (2.0.4) 
    builder (2.1.2) 
    erubis (2.6.6) 
     abstract (>= 1.0.0) 
    i18n (0.4.1) 
    mail (2.2.10) 
     activesupport (>= 2.3.6) 
     i18n (~> 0.4.1) 
     mime-types (~> 1.16) 
     treetop (~> 1.4.8) 
    mime-types (1.16) 
    mysql2 (0.2.6) 
    polyglot (0.3.1) 
    rack (1.2.1) 
    rack-mount (0.6.13) 
     rack (>= 1.0.0) 
    rack-test (0.5.6) 
     rack (>= 1.0) 
    rails (3.0.3) 
     actionmailer (= 3.0.3) 
     actionpack (= 3.0.3) 
     activerecord (= 3.0.3) 
     activeresource (= 3.0.3) 
     activesupport (= 3.0.3) 
     bundler (~> 1.0) 
     railties (= 3.0.3) 
    railties (3.0.3) 
     actionpack (= 3.0.3) 
     activesupport (= 3.0.3) 
     rake (>= 0.8.7) 
     thor (~> 0.14.4) 
    rake (0.8.7) 
    sqlite3-ruby (1.2.4) 
    thor (0.14.6) 
    treetop (1.4.9) 
     polyglot (>= 0.3.1) 
    tzinfo (0.3.23) 

PLATFORMS 
    ruby 

DEPENDENCIES 
    mysql2 
    rails (= 3.0.3) 
    sqlite3-ruby

宝石列表

 
Macintosh:$ gem list 

*** LOCAL GEMS *** 

abstract (1.0.0) 
actionmailer (3.0.3) 
actionpack (3.0.3) 
activemodel (3.0.3) 
activerecord (3.0.3) 
activeresource (3.0.3) 
activesupport (3.0.3) 
acts_as_ferret (0.4.4) 
arel (2.0.4) 
builder (3.0.0, 2.1.2) 
bundler (1.0.7) 
capistrano (2.5.9) 
dnssd (1.3) 
erubis (2.6.6) 
fastthread (1.0.7) 
gnuplot (2.2) 
highline (1.6.1, 1.5.1) 
hpricot (0.8.1) 
i18n (0.4.2, 0.4.1) 
libxml-ruby (1.1.3) 
linecache (0.43) 
mail (2.2.10) 
memcache-client (1.8.5, 1.7.6) 
memcached (0.17.5) 
mime-types (1.16) 
mysql2 (0.2.6) 
net-scp (1.0.4, 1.0.2) 
net-sftp (2.0.5, 2.0.2) 
net-ssh (2.0.23, 2.0.15) 
net-ssh-gateway (1.0.1) 
polyglot (0.3.1) 
rack (1.2.1, 1.0.1, 1.0.0) 
rack-mount (0.6.13) 
rack-test (0.5.6) 
rails (3.0.3) 
railties (3.0.3) 
rake (0.8.7, 0.8.4) 
rcov (0.9.9, 0.9.8) 
rdoc (2.5.11) 
RedCloth (4.2.2) 
rmagick (2.12.2) 
ruby-debug-base (0.10.3) 
ruby-debug-ide (0.4.5) 
rubygems-update (1.3.7, 1.3.5, 1.3.3) 
rvm (1.1.1) 
sqlite3-ruby (1.3.2, 1.2.4) 
test-spec (0.10.0) 
text-format (1.0.0) 
text-hyphen (1.0.0) 
thor (0.14.6) 
treetop (1.4.9) 
tzinfo (0.3.23) 
yard (0.5.8)

我的MySQL启动并运行：

 
Macintosh:$ mysql -uroot 
Welcome to the MySQL monitor. Commands end with ; or \g. 
Your MySQL connection id is 1 
Server version: 5.1.53 MySQL Community Server (GPL) 

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 
This software comes with ABSOLUTELY NO WARRANTY. This is free software, 
and you are welcome to modify and redistribute it under the GPL v2 license 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 

mysql>

这就是我在我的全新应用程序中所有的，但我仍然得到缺少的mysql2宝石问题。

我已经安装了X代码3.2.4的Snow Leopard 10.6.5。

有什么想法？

在此先感谢！

来源

2010-11-28 J Fong

谢谢，这只是绊倒了我。为我节省了很多时间，你有。 – richo 2011-04-20 23:27:03

我其实是有错误的适配器组对我的database.yml

所以解决方法是

 
development: 
    adapter: mysql2 
    database: development_database 
    username: root 
    password:

而不是

 
adapter: mysql

卫生署！

来源

2010-11-28 15:04:46

我有同样的问题，感谢修复！原来的错误信息并不是我想的最清晰的。 ;） – 2011-01-24 10:10:54

如果你看到的是最近，这是因为mysql2 0.3去除ActiveRecord的适配器，也就是现在的Rails的一部分3.1

WARNING: This version of mysql2 (0.3.2) doesn't ship with the ActiveRecord adapter bundled anymore as it's now part of Rails 3.1 
WARNING: Please use the 0.2.x releases if you plan on using it in Rails <= 3.0.x

调整你的Gemfile因此，如果你是on Rails的3.0.x的

gem 'mysql2', '~> 0.2.6'

来源

2011-05-30 03:16:50

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