Ruby on rails Rails控制台警告rvm已初始化常量Rails:：Command:：HELP\u映射

最近收到一个奇怪的控制台警告，我想我应该尝试清除它

当我转到rails项目文件夹并运行Mac Terminal命令时：

rails test

我得到以下警告：

/Users/zhang/.rvm/rubies/ruby-2.3.1/lib/ruby/gems/2.3.0/gems/railties-5.1.4/lib/rails/command.rb:18: warning: already initialized constant Rails::Command::HELP_MAPPINGS 

/Users/zhang/.rvm/gems/ruby-2.3.1@global/gems/railties-5.1.4/lib/rails/command.rb:18: warning: previous definition of HELP_MAPPINGS was here

我正在使用RVM

如果我运行

rvm gemset list

我会得到：

gemsets for ruby-2.3.1 (found in /Users/zhang/.rvm/gems/ruby-2.3.1)
   (default)
=> global

rvm rubies

   ruby-2.3.0 [ x86_64 ]
=* ruby-2.3.1 [ x86_64 ]
   ruby-head [ x86_64 ]

# => - current
# =* - current && default
#  * - default

如果我运行

rvm列表

我会得到：

gemsets for ruby-2.3.1 (found in /Users/zhang/.rvm/gems/ruby-2.3.1)
   (default)
=> global

rvm rubies

   ruby-2.3.0 [ x86_64 ]
=* ruby-2.3.1 [ x86_64 ]
   ruby-head [ x86_64 ]

# => - current
# =* - current && default
#  * - default

命令ruby--version输出：

ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]

Rails 5.1.4

命令rails--version输出：

ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]

Rails 5.1.4

有没有办法摆脱这些警告