Mac上的命令行“ rails server”錯誤

Question

每當我在mac終端中使用命令“ rails server”時，都會提示此錯誤：

/Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- rubygems/format (LoadError)
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler/source.rb:5:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler/dsl.rb:14:in `initialize'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler/dsl.rb:6:in `new'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler/dsl.rb:6:in `evaluate'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler/definition.rb:17:in `build'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler.rb:138:in `definition'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler.rb:126:in `load'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.0.22/lib/bundler.rb:110:in `setup'
    from /Users/martindureja/Desktop/rails_projects/first_app/config/boot.rb:8:in `<top (required)>'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
    from script/rails:5:in `<main>'

Answer 1

似乎在嘗試安裝gem時遇到權限錯誤。 如果您將來不想為此擔心，請使用RVM。

https://rvm.io/