[ec2-user@ip-XX-XXX-XXX-XXX rails]$ rails -h
/usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- io/console (LoadError)
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/share/ruby/gems/2.0/gems/thor-0.19.1/lib/thor/shell/basic.rb:2:in `<top (required)>'
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/share/ruby/gems/2.0/gems/thor-0.19.1/lib/thor/shell/color.rb:1:in `<top (required)>'
from /usr/local/share/ruby/gems/2.0/gems/thor-0.19.1/lib/thor/shell.rb:17:in `shell'
from /usr/local/share/ruby/gems/2.0/gems/thor-0.19.1/lib/thor/base.rb:439:in `start'
from /usr/local/share/ruby/gems/2.0/gems/railties-4.1.0/lib/rails/commands/application.rb:17:in `<top (required)>'
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/share/ruby/gems/2.0/gems/railties-4.1.0/lib/rails/cli.rb:14:in `<top (required)>'
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/share/ruby/vendor_ruby/2.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/share/ruby/gems/2.0/gems/railties-4.1.0/bin/rails:9:in `<top (required)>'
from /usr/local/bin/rails:23:in `load'
from /usr/local/bin/rails:23:in `<main>'
$ which rails
/usr/local/bin/rails
$ rails -v
Rails 4.1.0
$ gem install bundler
Fetching: bundler-1.6.2.gem (100%)
Successfully installed bundler-1.6.2
Parsing documentation for bundler-1.6.2
Installing ri documentation for bundler-1.6.2
Done installing documentation for bundler after 5 seconds
1 gem installed
我检查了重复安装:
$ find / 2>/dev/null| grep bin/ruby
/usr/bin/ruby
/usr/bin/ruby2.0
$ find / 2>/dev/null| grep bin/rails
/usr/local/share/ruby/gems/2.0/gems/railties-4.1.0/bin/rails
/usr/local/share/ruby/gems/2.0/gems/railties-4.1.0/lib/rails/generators/rails/plugin/templates/bin/rails.tt
/usr/local/share/ruby/gems/2.0/gems/railties-4.1.0/lib/rails/generators/rails/app/templates/bin/rails
/usr/local/share/ruby/gems/2.0/gems/rails-4.1.0/guides/code/getting_started/bin/rails
/usr/local/bin/rails
/home/ec2-user/.gem/ruby/2.0/gems/rails-4.1.0/guides/code/getting_started/bin/rails
您需要安装IO-console gem
。使用以下命令安装它:
gem install io-console
运行后rails-h
此外,运行echo$path
并确保路径中有/usr/local/bin
。如果没有,则需要添加它。
我安装了新的Ruby(2.0)和Rails 4.0,当我做“Rails新test_app”时,我会得到以下信息。有人遇到这个吗? [devuser@devbox~]$railstest_app /usr/本地/库/红宝石/2.0.0/红宝石/core_ext/kernel_require.rb:45:
我正在尝试运行一个jruby应用程序。每当我启动jruby脚本时,应用程序就会抛出一个错误 loaderror:没有这样的文件可加载--openssl/dummy(root)在/home/ubuntu/.rvm/gems/jruby-1.7.3/gems/jruby-0.8.2/lib/shared/jruby-openssl.rb:15 require at org/jruby/rubykern
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