我需要安装JSON gem来启动我的应用程序,但每当我尝试安装json gem时,我都会收到错误.谁能帮我吗.我正在使用rails 2.2.2和gem 1.3.1.
Arions-macbook-pro:.ssh arion$ sudo gem install json
Password:
Sorry, try again.
Password:
Building native extensions. This could take a while...
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb install json
can't find header files for ruby.
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/json-1.1.4 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/json-1.1.4/ext/json/ext/parser/gem_make.out
我按照http://geryit.com/blog/2011/01/installing-mysql-with-rails-on-mac-os-x-snow-leopard/上的说明进行操作,包括通过macport安装ruby.
每当我执行gem install mysql时 ,我都会收到以下错误
bash-3.2# gem install mysql
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/opt/local/bin/ruby extconf.rb
checking for mysql_ssl_set()... no
checking for rb_str_set_len()... no
checking for rb_thread_start_timer()... no
checking for mysql.h... no
checking for mysql/mysql.h... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You …我在Gemfile中有这个:
gem 'mysql2'
但是当我运行bundle update时,我收到以下错误消息:
An error occurred while installing mysql2 (0.3.16), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.3.16'` succeeds before bundling.
我试着把它移到生产部分,像这样:
group :production do
gem 'mysql2'
end
但是在运行bundle更新后,结果是一样的.此部分仅在生产模式下处理,或不处理？
如何摆脱localhost上的此错误消息？
编辑:整个错误消息:
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/Users/radek/.rvm/rubies/ruby-1.9.3-p385/bin/ruby extconf.rb
checking for ruby/thread.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. …我在我的Mac机器上运行XAMPP的mysql和apache(10.6.4).我通常使用此设置进行PHP开发,但
现在我想从Ruby on Rails开始.
不幸的是我无法让mysql与RoR一起工作.我用XAMPP启动mysql服务器,当我执行"rake db:migrate"时,我得到了这个输出:
!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.
rake aborted!
no such file to load -- mysqlMySQL是位于/ Applications/XAMPP/xamppfiles/bin和mysql的SOCKET是/Applications/XAMPP/xamppfiles/var/mysql/mysql.sock
因此我的database.yml文件如下所示:
development:
adapter: mysql
database: dbname
username: dbuser
password: dbpw
socket: /Applications/XAMPP/xamppfiles/var/mysql/mysql.sock我不认为我需要做一个"宝石安装mysql"因为MySQL已经与XAMPP运行.无论如何我试过但它也失败了:
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension. Installing mysql2 (0.2.6) with native extensions /Library/Ruby/Site/1.8/rubygems/installer.rb:483:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework /Versions/1.8/usr/lib/ruby/ruby.h
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/mysql2-0.2.6/ext/mysql2/gem_make.out
from /Library/Ruby/Site/1.8/rubygems/installer.rb:446:in `each'
from /Library/Ruby/Site/1.8/rubygems/installer.rb:446:in `build_extensions'
from /Library/Ruby/Site/1.8/rubygems/installer.rb:198:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/source.rb:96:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/installer.rb:55:in `run'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/spec_set.rb:12:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/spec_set.rb:12:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/installer.rb:44:in `run'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/installer.rb:8:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/cli.rb:226:in `install'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/vendor/thor/task.rb:22:in `send'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/vendor/thor/task.rb:22:in `run'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.10/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task' …所以我知道之前已经问过这个问题,我已经查看了之前的所有答案,但仍然无法找到解决方案.希望你们都能提供帮助.
设置:我正在运行Mac OS X 10.6服务器.我已经在Web应用程序上使用了内置的MySQL安装,它运行良好.现在我正在尝试运行需要MySQL的RoR应用程序.
所以,每当我进入
gem install mysql
它吐出以下错误:
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/Users/admin/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb --with-mysql-config=/var/mysql
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/admin/.rvm/rubies/ruby-1.9.2-p180/bin/ruby
--with-mysql-config
extconf.rb:35:in ``': …