安装“nio4r"时的rails 5.0.0；: 构建 gem 原生扩展失败 [英] rails 5.0.0 when installing "nio4r" : Failed to build gem native extension

问题描述

这里是日志:http://pastebin.com/CAgur9xd

Installing nio4r 1.2.1 with native extensions

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    C:/RailsInstaller/Ruby2.2.0/bin/ruby.exe -r ./siteconf20160720-8272-c88sgk.rb extconf.rb --with-cflags=-std=c99
checking for unistd.h... *** 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:/RailsInstaller/Ruby2.2.0/bin/$(RUBY_BASE_NAME)
C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:587:in `try_cpp'
         from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:1060:in `block in have_header'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:911:in `block in checking_for'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:351:in `block (2 levels) in postpone'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:321:in `open'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:351:in `block in postpone'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:321:in `open'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:347:in `postpone'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:910:in `checking_for'
        from C:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/mkmf.rb:1059:in `have_header'
        from extconf.rb:3:in `<main>'

extconf failed, exit code 1

安装包时返回(从日志中的第 117 行开始):

when installing bundle it returns(starts at line 117 in the logs ):

Installing nio4r 1.2.1 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

因此无法安装捆绑包.它在最后返回:

So the bundle can't be installed. It returns at the end :

An error occurred while installing nio4r (1.2.1), and Bundler cannot continue.
Make sure that `gem install nio4r -v '1.2.1'` succeeds before bundling.

注意:我已经尝试过其他问题的解决方案，但还是一样.如果可以手动安装nio4r"，请告诉我如何.

Note :I have tried the solutions in other questions, but it is still the same. If it is possible to install "nio4r" manually please tell me how .

推荐答案

我在尝试将我的 Rails 升级到 V5.0.0 时遇到了同样的问题，我按照这个说明进行操作，它运行良好.在此处阅读安装 Ruby DevKit"部分 >> http://jekyll-windows.juthilo.com/1-ruby-and-devkit/

I am facing the same issue while I was trying to upgrade my Rails to V5.0.0, I follow this instruction and it works perfectly. Read the section "Install the Ruby DevKit" here >> http://jekyll-windows.juthilo.com/1-ruby-and-devkit/

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