OpsWorks Rails 应用服务器设置

Question

我正在尝试使用默认 Rails 应用服务器设置启动 OpsWorks 实例，但遇到以下错误：

================================================================================
Error executing action `run` on resource 'ruby_block[ensure only our unicorn version is installed by deinstalling any other version]'
================================================================================


Errno::ENOENT
-------------
No such file or directory - /usr/local/bin/gem


Cookbook Trace:
---------------
/var/lib/aws/opsworks/cache.stage2/cookbooks/dependencies/libraries/current_gem_version.rb:6:in ``'
/var/lib/aws/opsworks/cache.stage2/cookbooks/dependencies/libraries/current_gem_version.rb:6:in `ensure_only_gem_version'
/var/lib/aws/opsworks/cache.stage2/cookbooks/unicorn/recipes/default.rb:3:in `block (2 levels) in from_file'

下图是我所做的唯一配置。我没有添加任何额外的食谱。 （有一些自定义安全组，但我认为这不会导致上述错误。我试图调出的实例是带有 Ubuntu 14.04 操作系统的 m3.large。

Answer 1

登录服务器并输入

which gem

或

whereis gem

看看有没有返回。