第一次在这里发帖！我正在尝试构建一个 rails 应用程序，但我在开始时遇到了很多困难。我已经安装了 Rails 和 Ruby，但是每次我去制作应用程序 (Miless-MBP:railstest miles$ rails new tester2) 时，我都会遇到很多错误。完整日志如下，但我在这里列出了 4 个。
非常感谢大家！
/Users/miles/.rvm/gems/ruby-2.6.3/gems/msgpack-1.3.1/lib/msgpack.rb:9:in `require': cannot load such file -- msgpack/2.6/msgpack (LoadError)
/Users/miles/.rvm/gems/ruby-2.6.3/gems/msgpack-1.3.1/lib/msgpack.rb:11:in `require': incompatible library version - /Users/miles/.rvm/gems/ruby-2.6.3/gems/msgpack-1.3.1/lib/msgpack/msgpack.bundle (LoadError)
/Users/miles/.rvm/gems/ruby-2.6.3/gems/msgpack-1.3.1/lib/msgpack.rb:9:in `require': cannot load such file -- msgpack/2.6/msgpack (LoadError)
/Users/miles/.rvm/gems/ruby-2.6.3/gems/msgpack-1.3.1/lib/msgpack.rb:11:in `require': incompatible library version - /Users/miles/.rvm/gems/ruby-2.6.3/gems/msgpack-1.3.1/lib/msgpack/msgpack.bundle (LoadError)
26: from bin/rails:3:in `<main>'
25: from bin/rails:3:in `load'
24: from /Users/miles/railstest/tester2/bin/spring:15:in `<top (required)>'
23: from /Users/miles/railstest/tester2/bin/spring:15:in `require'
22: from /Users/miles/.rvm/gems/ruby-2.6.3/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `<top (required)>'
21: from /Users/miles/.rvm/gems/ruby-2.6.3/gems/spring-2.1.0/lib/spring/binstub.rb:11:in `load'
20: from /Users/miles/.rvm/gems/ruby-2.6.3/gems/spring-2.1.0/bin/spring:49:in `<top (required)>' …