gem install kgio ERROR

Question

我已经下载了一个rails开源webapp，当我开始使用时：

C:\Users\admin\Downloads\iCare\icare-develop>rails server
←[31mCould not find kgio-2.8.0 in any of the sources←[0m
←[33mRun `bundle install` to install missing gems.←[0m

我尝试使用以下方法修复此错误：

cmd:>gem install kgio -v '2.8.0'

我收到了错误：

Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing kgio:
ERROR: Failed to build gem native extension.C:/Ruby193/bin/ruby.exe extconf.rb
checking for CLOCK_MONOTONIC in time.h... no
checking for CLOCK_MONOTONIC() in time.h... no
checking for clockid_t in time.h... no
checking for clock_gettime() in -lrt... no
checking for t_open() in -lnsl... no
checking for socket() in -lsocket... no
checking for poll() in poll.h... no
checking for getaddrinfo() in sys/types.h,sys/socket.h,netdb.h... no
getaddrinfo required
*** 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.

和

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:/Ruby193/bin/ruby
        --with-rtlib
        --without-rtlib
        --with-nsllib
        --without-nsllib
        --with-socketlib
        --without-socketlib

和     Gem文件将保留在C：/Ruby193/lib/ruby/gems/1.9.1/gems/kgio-2.8中。     0用于检查。     结果记录到C：/Ruby193/lib/ruby/gems/1.9.1/gems/kgio-2.8.0/ext/kgio/gem_ma     ke.out

之后输入了bundle install，但没有发生任何事情......

Answer 1

kgio仅适用于* nix系统。

kgio宝石页面：

  

kgio 2.8.0 kgio为Ruby提供非阻塞I / O方法   提高EAGAIN和EINPROGRESS的例外情况。它打算使用   与独角兽和彩虹！机架服务器，但可能被其他服务器使用   应用程序（在类Unix平台上运行）。

Answer 2

试试这个

platforms :ruby do # linux

  gem 'unicorn'

end

platforms :mswin do

  # gems specific to windows

end

来源： Develop on windows, run unicorn in production on heroku

Answer 3

我认为你正在使用Windows操作系统，所以只有你需要了解这个错误才能在你的gem文件中注释或删除 gem'unicorn'，因为这只是对于Linux系统