Tag: archlinux

gem install：错误：无法构建gem原生扩展: 我使用的是Arch Linux并安装了Ruby（这是2.0.0版本）。当我安装Ruby时，它说我应该添加： $(ruby -rubygems -e “puts Gem.user_dir”)/bin 在我的路上，我把它添加到.bashrc 当我尝试gem安装rails或任何其他gem时，它会给出错误：无法构建gem原生扩展。这是完整的错误： ERROR: While executing gem … (Gem::FilePermissionError) You don’t have write permissions for the /usr/lib/ruby/gems/2.0.0 directory. [alexander@localhost ~]$ sudo gem install rails –no-user-install Building native extensions. This could take a while… ERROR: Error installing rails: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb creating […]

需要帮助在rails javascript运行时环境中设置ruby: 我在机器上的导轨上设置ruby时遇到了麻烦。我一直在关注“使用Rails进行敏捷Web开发”一书，直到现在一切都很顺利。我遇到的问题是当我输入时 rails server 我收到以下错误： /home/myname/.gem/ruby/1.9.1/gems/execjs-1.3.0/lib/execjs/runtimes.rb:50:in `autodetect’: Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable) from /home/myname/.gem/ruby/1.9.1/gems/execjs-1.3.0/lib/execjs.rb:5:in `’ from /home/myname/.gem/ruby/1.9.1/gems/execjs-1.3.0/lib/execjs.rb:4:in `’ from /usr/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `require’ from /usr/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `’ from /usr/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `require’ from /usr/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `’ from /usr/lib/ruby/gems/1.9.1/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `require’ from /usr/lib/ruby/gems/1.9.1/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `’ from /home/myname/.gem/ruby/1.9.1/gems/bundler-1.1.0/lib/bundler/runtime.rb:68:in `require’ from /home/myname/.gem/ruby/1.9.1/gems/bundler-1.1.0/lib/bundler/runtime.rb:68:in `block (2 levels) […]