以下是我已经尝试找到答案的地方: 教程点、stackoverflow、另一个堆栈溢出和官方指南。
我仍然不知道我做错了什么。正确配置 database.yml 后,我尝试创建项目,这是我得到的错误:
“请更新您的 PATH 以包含构建工具或从“ http://rubyinstaller.org/downloads ”下载 DevKit,并按照“ http://github.com/oneclick/rubyinstaller/wiki/Development-Kit ”中的说明进行操作
安装 mysql2 (0.3.13) 时出错,Bundler 无法继续。gem install mysql2 -v '0.3.13'
在捆绑之前确保成功。”
为什么找不到mysql2 v0.3.13?
操作系统:Windows 7 Rails:4.0.0 Ruby:已安装 1.9.3 DevKit
我遇到的错误
$ bundle exec rails s
Could not locate Gemfile
$ bundle
Bundler::GemfileNotFound
`$ gem install mysql2
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
c:/Ruby193/bin/ruby.exe extconf.rb
checking for rb_thread_blocking_region()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
*** 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=c:/Ruby193/bin/ruby
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
extconf.rb:37:in `<main>': undefined method `[]' for nil:NilClass (NoMethodError)
Gem files will remain installed in c:/Ruby193/lib/ruby/gems/1.9.1/gems/mysql2-0.3.13 for inspection.`