在安装Rails时，一切都很好，但随后，我写道:
rails -v
和输出:
/home/toshiba/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- rails/cli (LoadError)
from /home/toshiba/.rvm/rubies/ruby-2.2.1/lib/ruby/site_ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /usr/bin/rails:7:in `<main>'
大家都知道该怎么做吗？
我使用了本教程:http://installfest.railsbridge.org/
是的，我跑:
gem install rails
我注意到当我运行安装 rails 时，这东西弹出了
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
/home/toshiba/.rvm/rubies/ruby-2.2.1/bin/ruby -r ./siteconf20150816-3818-sm5w21.rb extconf.rb
checking if the C compiler accepts -ggdb3 -O0 -std=c99 -Wall -Werror... yes
Building nokogiri using packaged libraries.
checking for gzdopen() in -lz... no
zlib is missing; necessary for building libxml2
*** 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=/home/toshiba/.rvm/rubies/ruby-2.2.1/bin/$(RUBY_BASE_NAME)
--help
--clean
--use-system-libraries
--enable-static
--disable-static
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
--enable-cross-build
--disable-cross-build
extconf failed, exit code 1
Gem files will remain installed in /home/toshiba/.rvm/gems/ruby-2.2.1/gems/nokogiri-1.6.6.2 for inspection.
Results logged to /home/toshiba/.rvm/gems/ruby-2.2.1/extensions/x86_64-linux/2.2.0/nokogiri-1.6.6.2/gem_make.out
好像不好
最佳答案
我已经解决了这个问题
sudo apt-get install zlib1g-dev
关于ruby-on-rails - Ubuntu 14.04 Rails丢失文件，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/32036372/