无法安装RestClient宝石

Question

我想在Ruby中安装restclient。我收到以下信息：

Building native extensions.  This could take a while...
ERROR:  Error installing rest-client:
ERROR: Failed to build gem native extension.

current directory: /var/lib/gems/2.3.0/gems/unf_ext-0.0.7.4/ext/unf_ext
/usr/bin/ruby2.3 -r ./siteconf20170427-2260-1nc7gtz.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include /ruby.h

extconf failed, exit code 1

Gem files will remain installed in /var/lib/gems/2.3.0/gems/unf_ext-0.0.7.4 for inspection.
Results logged to /var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/unf_ext-0.0.7.4/gem_make.out

我的终端命令是：sudo gem install rest-client。有人能帮我吗？

- r.az91

Answer 1

如果您的堆栈跟踪中出现以下内容：

Makefile:207: recipe for target 'unf.o' failed

您缺少 build-essential g++。在 Ubuntu 上，您可以使用以下命令进行安装：

sudo apt-get install build-essential g++

然后重新运行：

sudo gem install rest-client

- user5099519

Answer 2

您的系统缺少开发头文件，请运行：

sudo apt-get install ruby-dev zlib1g-dev liblzma-dev

- aqfaridi

Answer 3

首先，您需要确保拥有编译 Ruby 扩展模块所需的头文件。如果您使用的是 Ubuntu（Ubuntu 16.04.3 LTS），请按照以下方式检查：

apt list --installed | grep ruby-all-dev

如果找不到，则安装它：

sudo apt-get install ruby-all-dev

现在你可以继续安装rest-client：

sudo gem install rest-client

- Yuci