Gem安装错误的参数数量（给定1，预期为0）
当我运行bundle ，我得到以下内容：
The `bundle' command exists in these Ruby versions: 2.1.8 2.4.2 jruby-9.1.15.0
我的项目使用Ruby-2.5.1，所以我尝试使用gem install bundler更新我的gem install bundler ，但是我收到以下错误：
ERROR: While executing gem ... (ArgumentError) wrong number of arguments (given 1, expected 0)
使用--backtrace
/Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:47:in `require' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/installer.rb:162:in `initialize' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/installer.rb:104:in `new' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/installer.rb:104:in `at' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/resolver/specification.rb:93:in `install' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/request_set.rb:166:in `block in install' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/request_set.rb:156:in `each' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/request_set.rb:156:in `install' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/commands/install_command.rb:251:in `install_gem' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/commands/install_command.rb:301:in `block in install_gems' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/commands/install_command.rb:297:in `each' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/commands/install_command.rb:297:in `install_gems' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/commands/install_command.rb:204:in `execute' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/command.rb:310:in `invoke_with_build_args' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/command_manager.rb:169:in `process_args' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/command_manager.rb:139:in `run' /Users/spencerbailey/.rbenv/versions/2.5.1/lib/ruby/site_ruby/2.5.0/rubygems/gem_runner.rb:55:in `run' /Users/spencerbailey/.rbenv/versions/2.5.1/bin/gem:21:in `'
额外的信息：
- Rails 5.1.2
- ruby2.5.1
- macOS High Sierra版本10.13.4
（代表作者提问） 。
我通过重新安装Rbenv然后使用rbenv rehash解决了这个问题。