Ruby-on-rails 为什么我不能安装 SQLite gem？
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Why can't I install the SQLite gem?
提问by Eric Noob
I'm try to install the SQLite gem on a Fedora 9 Linux box with Ruby 1.8.6, Rails 2.2.2, gem 1.3, and sqlite-3.5.9. Here's the command I'm running and its results:
我尝试在带有 Ruby 1.8.6、Rails 2.2.2、gem 1.3 和 sqlite-3.5.9 的 Fedora 9 Linux 机器上安装 SQLite gem。这是我正在运行的命令及其结果：
sudo gem install sqlite3-ruby
Building native extensions. This could take a while...
ERROR: Error installing sqlite3-ruby:
ERROR: Failed to build gem native extension.
/usr/bin/ruby extconf.rb install sqlite3-ruby
can't find header files for ruby.
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out
gem_make.outjust repeats what was already sent to the console. How can I install this gem?
gem_make.out只是重复已经发送到控制台的内容。我该如何安装这个 gem？
回答by J?rg W Mittag
The SQLite RubyGem isn't actually a RubyGem, it's a "CGem", IOW it's written in C. This means it has to be compiled and linked to the Ruby interpreter when you install it and in order to do thatit needs the C header files for the Ruby interpreter.
SQLite RubyGem 实际上不是RubyGem，它是一个“ CGem”，它是用 C 编写的。这意味着它必须在安装时编译并链接到 Ruby 解释器，为了做到这一点，它需要Ruby 解释器的 C 头文件。
If you compile Ruby yourself, those header files will be installed automatically, however, in RedHat-ish systems, such header files are usually packaged in a seperate package, called <whatever>-dev. So, in this case you will need to install the ruby-devpackage and possibly the libsqlite3-dev(Ubuntu) or sqlite-devel(Fedora) package as well.
如果你自己编译 Ruby，这些头文件会自动安装，但是，在 RedHat-ish 系统中，这些头文件通常打包在一个单独的包中，称为<whatever>-dev. 因此，在这种情况下，您将需要安装该ruby-dev软件包，也可能需要安装libsqlite3-dev(Ubuntu) 或sqlite-devel(Fedora) 软件包。
However, you might be better off just installing your Operating System's pre-packaged libsqlite3-rubypackage, that way all the dependencies are automatically satisfied.
但是，您最好只安装操作系统的预打包libsqlite3-ruby软件包，这样所有依赖项都会自动得到满足。
(Note: all package names pulled out of thin air, might be different on your system.)
（注意：所有的包名都是凭空而来的，在你的系统上可能会有所不同。）
回答by hacintosh
You probably need the ruby dev package. For Ubuntu you have to install ruby1.8-dev which includes the ruby header files. A quick google says that the yum package is ruby-devel. so run this:
您可能需要 ruby dev 包。对于 Ubuntu，您必须安装包含 ruby 头文件的 ruby1.8-dev。一个快速的谷歌说 yum 包是 ruby-devel。所以运行这个：
sudo yum install ruby-devel
须藤 yum 安装 ruby-devel
回答by Rahul
I faced problem installing sqlite3-ruby gem on my fedora 13 box. It was fixed after sudo yum install sqlite-devel
我在我的 Fedora 13 盒子上安装 sqlite3-ruby gem 时遇到了问题。sudo yum install sqlite-devel后修复
回答by matiasmasca
When I had that problem:
当我遇到这个问题时：
gem install sqlite3 -v '1.3.9'
Building native extensions. This could take a while...
ERROR: Error installing sqlite3:
ERROR: Failed to build gem native extension.
For me worked, installing the "libsqlite3-dev" with:
对我来说，安装“ libsqlite3-dev”：
apt-get install libsqlite3-dev
回答by Sacha
sudo apt-get install ruby-dev
Fixed it for me.
为我修好了。
回答by ldemon
On Ubuntu 9 and 10 try:
在 Ubuntu 9 和 10 上尝试：
sudo apt-get install ruby-dev
sudo apt-get install sqlite3-dev
Then run
然后运行
gem install sqlite3
回答by Promise Preston
I also faced this same issue, the problem is that your Linux installation requires the development libraries for SQLite3 to be installed in order to build the gem.
我也遇到了同样的问题，问题是你的 Linux 安装需要安装 SQLite3 的开发库才能构建 gem。
Here's how I fixed the issue
这是我解决问题的方法
Open your terminal and run the following commands
打开终端并运行以下命令
sudo apt-get install sqlite3
sudo apt-get install libsqlite3-dev
And then try installing Sqlite3 gem again using this command
然后尝试使用此命令再次安装 Sqlite3 gem
gem install sqlite3
That's all.
就这样。
I hope this helps
我希望这有帮助
回答by Chase
Run the following for Fedora OS:
为 Fedora 操作系统运行以下命令：
yum install rubygem-sqlite3
回答by barneytron
Do you have all the source code required to build sqlite3-ruby? Gem is trying to compile some C code and cannot find the headers. You can probably use a fedora rpm for sqlite3-ruby (I don't use fedora, but I'm sure one exists) if you prefer to forgo compiling. Personally for ruby stuff, I prefer to use gem rather than a distro's packaging system.
你有构建 sqlite3-ruby 所需的所有源代码吗？Gem 正在尝试编译一些 C 代码，但找不到头文件。如果您更愿意放弃编译，您可能可以将 Fedora rpm 用于 sqlite3-ruby（我不使用 Fedora，但我确定存在）。就个人而言，对于 ruby 的东西，我更喜欢使用 gem 而不是发行版的打包系统。
回答by Omer Levi Hevroni
On alpine, you need to install the sqlite-devpackage.
在 alpine 上，您需要安装该sqlite-dev软件包。
