[英]Cant run rails server on ubuntu
我正在研究紅寶石,
我已經使用了一個項目
rails new proj -d mysql
然后我輸入
Rails服務器
但出現此錯誤,這是什么問題
/home/mani/.rvm/gems/ruby-2.1.2/gems/execjs-2.2.1/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /home/mani/.rvm/gems/ruby-2.1.2/gems/execjs-2.2.1/lib/execjs.rb:5:in `<module:ExecJS>'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/execjs-2.2.1/lib/execjs.rb:4:in `<top (required)>'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/uglifier-2.5.3/lib/uglifier.rb:3:in `require'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/uglifier-2.5.3/lib/uglifier.rb:3:in `<top (required)>'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler/runtime.rb:76:in `require'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler/runtime.rb:72:in `each'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler/runtime.rb:72:in `block in require'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler/runtime.rb:61:in `each'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler/runtime.rb:61:in `require'
from /home/mani/.rvm/gems/ruby-2.1.2@global/gems/bundler-1.7.2/lib/bundler.rb:133:in `require'
from /home/mani/Sites/proj/config/application.rb:7:in `<top (required)>'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:79:in `require'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:79:in `block in server'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:76:in `tap'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:76:in `server'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/railties-4.1.5/lib/rails/commands.rb:17:in `<top (required)>'
from /home/mani/Sites/proj/bin/rails:8:in `require'
from /home/mani/Sites/proj/bin/rails:8:in `<top (required)>'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `load'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `call'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/client/command.rb:7:in `call'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/client.rb:26:in `run'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/bin/spring:48:in `<top (required)>'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `load'
from /home/mani/.rvm/gems/ruby-2.1.2/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `<top (required)>'
from /home/mani/Sites/proj/bin/spring:16:in `require'
from /home/mani/Sites/proj/bin/spring:16:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
在您的Gemfile
添加以下寶石:
gem 'execjs'
gem 'therubyracer'
運行bundle install
,現在嘗試啟動rails服務器rails s
您可以在系統上執行此操作
須藤apt-get install nodejs
sudo apt-get install build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev automake libtool bison nodejs subversion
然后重新啟動計算機。
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