mysql gem 2.7：无法安装

时间：2012-03-01 10:27:25

标签： mysql rubygems

我正在尝试在MacOsX Snow Leopard上安装mysql gem v.2.7。 我知道很多关于这一点，我已经阅读了大部分内容。

如果我执行以下操作：

sudo env ARCHFLAGS="-arch x86_64" gem install mysql -v '2.7' -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

我明白了：

ERROR:  While executing gem ... (TypeError)
can't dup NilClass

相反，尝试安装v 2.8可以正常工作：

sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config

Successfully installed mysql-2.8.1
1 gem installed
Installing ri documentation for mysql-2.8.1...
Installing RDoc documentation for mysql-2.8.1...

但是在尝试启动我的本地服务器时出现了这个错误：

=> Booting WEBrick
=> Rails 2.3.6 application starting on http://0.0.0.0:3000    
/Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/dependencies.rb:440:in `load_missing_constant': uninitialized constant MysqlCompat::MysqlRes (NameError)
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/dependencies.rb:80:in `const_missing'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/mysql_adapter.rb:9:in `define_all_hashes_method!'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/mysql_adapter.rb:68:in `mysql_connection'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new_connection'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout_new_connection'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout'
from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve_connection'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve_connection'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activerecord-2.3.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection'
from /Users/phishman/Sites/BlindDog/vendor/plugins/admin_data/lib/admin_data/settings.rb:65:in `initialize_defaults'
from /Users/phishman/Sites/BlindDog/vendor/plugins/admin_data/init.rb:36:in `evaluate_init_rb'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/rails/plugin.rb:158:in `evaluate_init_rb'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/rails/plugin.rb:154:in `evaluate_init_rb'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/rails/plugin.rb:48:in `load'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/rails/plugin/loader.rb:38:in `load_plugins'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/rails/plugin/loader.rb:37:in `each'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/rails/plugin/loader.rb:37:in `load_plugins'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/initializer.rb:369:in `load_plugins'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/initializer.rb:165:in `process'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/initializer.rb:113:in `send'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/initializer.rb:113:in `run'
from /Users/phishman/Sites/BlindDog/config/environment.rb:9
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/dependencies.rb:156:in `require'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/dependencies.rb:156:in `require'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/dependencies.rb:521:in `new_constants_in'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/activesupport-2.3.6/lib/active_support/dependencies.rb:156:in `require'
from /Users/phishman/Sites/BlindDog/vendor/ruby/1.8/gems/rails-2.3.6/lib/commands/server.rb:84
from script/server:3:in `require'
from script/server:3
你能帮帮我吗？拜托，我一直在打破我的头2天:( 我正在使用的MySQL是从mysql.com下载的dmg。我甚至试图卸载它并从macports安装mysql但遇到很多错误，所以我不得不从mysql.com重新安装

3 个答案:

答案 0 :(得分：1)

我自己也遇到了这个问题。谷歌搜索不仅出现了这个问题（这对我来说没有帮助 - 这个项目还没有为Bundler做好准备，加上我们正在使用RVM，sudo已经出局），而且当我问到IRC logs时一年前在RVM IRC频道上提出同样的问题。 （嗯，这听起来很熟悉。）

如果您不想筛选IRC日志，请参阅摘要：Rubygems的较新版本（例如1.6.x，RVM默认安装ree-1.8.7，这是我们使用的）don与mysql gem一起玩得很好。试试这个：


ree-1.8.7 $ rvm rubygems 1.5.2
Removing old Rubygems files...
Installing rubygems-1.5.2 for ree-1.8.7-2012.02 ...
Installation of rubygems completed successfully.
ree-1.8.7 $ env ARCHFLAGS="-arch x86_64" gem install mysql -v 2.7 -- --with-mysql-config=/usr/local/mysql/bin/mysql_config 
Building native extensions.  This could take a while...
Successfully installed mysql-2.7
1 gem installed
Installing ri documentation for mysql-2.7...
Installing RDoc documentation for mysql-2.7...
ree-1.8.7 $

努力享受。

答案 1 :(得分：0)

找到安装mysql gem的方法并使其工作：

我安装了rvm，istalled ruby​​ 1.8.7并使它成为defualt ruby​​（而不是系统之一），然后我使用

编译并重新安装所有宝石 
sudo env ARCHFLAGS="-arch x86_64" bundle install

现在有效！

答案 2 :(得分：0)

我自己也遇到过这个问题;我们有一个应用程序，它运行在旧版本的ruby和rails上。

我正在使用：

  • rbenv
  • Mac OS - Mavericks
  • 捆绑
  • ruby​​ ree-1.8.7-2010.02

我不得不降级rubygems：

gem update --system 1.5.2

然后我可以用：

安装mysql 2.7（以及其他所有内容） 
sudo env ARCHFLAGS="-arch x86_64" bundle install
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