與RVM

我最近升級到Rails 3，創造了使用Rails 3.0.3新的應用程序安裝mysql2在Snow Leopard上的寶石爲Rails 3，但我一直收到錯誤與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'):

我有一個64位機。錯誤只在文檔上，看起來像是正確安裝了寶石。

 
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

我已經添加了寶石在我的Gemfile

 
source 'http://rubygems.org' 

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

我Gemfile.lock的看起來像這樣

 
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

寶石列表

 
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啓動並運行：

 
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>

這就是我在我的全新應用程序中所有的，但我仍然得到缺少的mysql2寶石問題。

我已經安裝了X代碼3.2.4的Snow Leopard 10.6.5。

有什麼想法？

在此先感謝！

來源

2010-11-28 J Fong

謝謝，這只是絆倒了我。爲我節省了很多時間，你有。 – richo 2011-04-20 23:27:03

我其實是有錯誤的適配器組對我的database.yml

所以解決方法是

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

而不是

 
adapter: mysql

衛生署！

來源

2010-11-28 15:04:46

我有同樣的問題，感謝修復！原來的錯誤信息並不是我想的最清晰的。 ;） – 2011-01-24 10:10:54

如果你看到的是最近，這是因爲mysql2 0.3去除ActiveRecord的適配器，也就是現在的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

調整你的Gemfile因此，如果你是on Rails的3.0.x的

gem 'mysql2', '~> 0.2.6'

來源

2011-05-30 03:16:50

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