https://ruby-china.org/bgsmgrx en-us <p>注： 我是使用系统自带的 ruby gem，一敲 rails 命令就提示一下信息，所以我就用它提示的命令去安装: Rails is not currently installed on this system. To get the latest version, simply type: $ sudo gem install rails You can then rerun your "rails" command.</p> <p>有查过一下资料，有的人说是因为系统自带的 ruby 的问题，建议不要用，小弟是小白，对 ruby 不了解，希望各位提点一下；</p> <p>在 macbook 上使用#sudo gem install rails -V 安装 rails 提示了下面的错误： ....前面一段都没有问题，从下面开始有问题： Building native extensions. This could take a while... /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb checking if the C compiler accepts ... yes checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future... no Building nokogiri using packaged libraries.</p> <p>The file "/usr/include/iconv.h" is missing in your build environment, which means you haven't installed Xcode Command Line Tools properly.</p> <p>To install Command Line Tools, try running <code>xcode-select --install</code> on terminal and follow the instructions. If it fails, open Xcode.app, select from the menu "Xcode" - "Open Developer Tool" - "More Developer Tools" to open the developer site, download the installer for your OS version and run it.</p> <p>*** 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.</p> <p>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=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby --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 ERROR: Error installing rails: ERROR: Failed to build gem native extension.</p> <p>Building has failed. See above output for more information on the failure.</p> <p>Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.6.2 for inspection. Results logged to /Library/Ruby/Gems/2.0.0/gems/nokogiri-1.6.6.2/ext/nokogiri/gem_make.out</p> bgsmgrx Thu, 02 Jul 2015 13:15:25 +0800 https://ruby-china.org/topics/26285 https://ruby-china.org/topics/26285 <p>每次启动机器输入 ruby 都提示 ruby 没有安装 手动 source .rvm/scripts/rvm一下就可以了</p> <p>~/.bash_profile 文件中也有相对应的设置内容 [[ -s "$HOME/.rvm/scripts/rvm" ]] &amp;&amp; source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session <em>as a function</em></p> <p>但是每次启动终端的时候都提示 ruby 没有安装 这个会是什么原因导致的？</p> <p>操作系统版本 Ubuntu 12.04.4 LTS 64bit</p> bgsmgrx Wed, 12 Feb 2014 16:58:06 +0800 https://ruby-china.org/topics/17202 https://ruby-china.org/topics/17202