由于缺少 sqlite3 gem,Rails 4.0rc1 应用程序没有运行
我第一次尝试安装 Rails 4.0.在带有 Ruby 2.0 x64 的 Windows 8 上.冉:
First time I've tried installing Rails 4.0. On Windows 8 with Ruby 2.0 x64. Ran:
gem install rails --version 4.0.0.rc1 --no-ri --no-rdoc
然后我跑:
rails new test_app
cd test_app
rails s
但是localhost:3000
的网页报错如下:
为数据库适配器指定了sqlite3",但未加载 gem.将 gem 'sqlite3'
添加到您的 Gemfile.
Specified 'sqlite3' for database adapter, but the gem is not loaded. Add
gem 'sqlite3'
to your Gemfile.
它在我的 Gemfile 中:
It's there in my Gemfile:
gem 'sqlite3'
我尝试多次运行 bundle install
,但它甚至没有在所有其他 gem 中列出它.
I tried running bundle install
several times and it doesn't even list it among all the other gems.
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:
UPDATE: I've tried installing the sqlite3 gem in 2 different ways, both using the terminal that opens from the msys.bat file from the DevKit. The way the @szines below mentions gives me the following error:
$ 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
另一方面,我使用 sqlite.org 中的 autoconf 包,并且我能够编译和安装 sqlite3 gem.但是,当我尝试打开 Rails 服务器时,出现以下错误:
The other way, I use the autoconf package from sqlite.org and I am able to compile and install the sqlite3 gem. However, when I try to open the Rails server I get the following error:
C:UsersmeRubymineProjectsmy_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>'
推荐答案
很烦人,但我终于让它工作了.您基本上必须执行以下操作:
Pretty annoying, but I finally got it working. You basically have to do the following:
- 下载准备编译的sqlite文件 作者 Luis Lavena(这是 x64)
- 使用 7-zip 解压到`c:sqlite3
- 从您将 DevKit 解压到的 DevKit 文件夹中运行 msys.bat
- 运行
gem install sqlite3 --platform=ruby -- --with-opt-dir=C:/sqlite3
- Download sqlite files ready to be compiled by Luis Lavena (this is x64)
- Unarchive with 7-zip to maybe `c:sqlite3
- Run msys.bat from within the DevKit folder you unarchived DevKit to
- Run
gem install sqlite3 --platform=ruby -- --with-opt-dir=C:/sqlite3
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