我第一次尝试安装 Rails 4.0。在带有 Ruby 2.0 x64 的 Windows 8 上。冉:
gem install rails --version 4.0.0.rc1 --no-ri --no-rdoc
然后我运行:
rails new test_app
cd test_app
rails s
但该网页localhost:3000
报告以下错误:
为数据库适配器指定了“sqlite3”,但未加载 gem。添加
gem 'sqlite3'
到您的 Gemfile。
它在我的 Gemfile 中:
gem 'sqlite3'
我尝试运行bundle install
了几次,它甚至没有将它列在所有其他宝石中。
更新:我尝试以两种不同的方式安装 sqlite3 gem,都使用从 DevKit 的 msys.bat 文件打开的终端。下面提到的@szines 的方式给了我以下错误:
$ gem install sqlite3 --platform=ruby -- --with-opt-dir=c:/sqlite-amalgamation-3071602
Temporarily enhancing PATH to include DevKit...
Building native extensions with: '--with-opt-dir=c:/sqlite-amalgamation-3071602'
This could take a while...
ERROR: Error installing sqlite3:
ERROR: Failed to build gem native extension.
c:/Ruby200-x64/bin/ruby.exe extconf.rb --with-opt-dir=c:/sqlite-amalgamation-3071602
checking for sqlite3.h... yes
checking for sqlite3_libversion_number()... -lsqlite3
sqlite3 is missing. Install SQLite3 from http://www.sqlite.org/ first.
*** 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
--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:/Ruby200-x64/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include
--without-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/
--enable-local
--disable-local
--with-sqlite3lib
--without-sqlite3lib
Gem files will remain installed in c:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7 for inspection.
Results logged to c:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7/ext/sqlite3/gem_make.out
另一种方式,我使用来自 sqlite.org 的 autoconf 包,我能够编译和安装 sqlite3 gem。但是,当我尝试打开 Rails 服务器时,出现以下错误:
C:\Users\me\RubymineProjects\my_project>rails s
C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7/lib/sqlite3.rb:6:in `require': cannot load such file -- sqlite3/sqlite3_native (LoadError)
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7/lib/sqlite3.rb:6:in `rescue in <top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7/lib/sqlite3.rb:2:in `<top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from C:/Users/me/RubymineProjects/my_project/config/application.rb:7:in `<top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `block in <top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `tap'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'