无法启动rails服务器：在SDK中找不到rails/无法激活bundler-1.25.5

Question

我使用的是jetbrains的rubymine，当试图通过单击run-->run'development:helloworld'来运行rails server时，它的意思是：

运行开发时出错：HelloWorld:[SDK中找不到Rails]

我签入了文件-->默认设置...-->语言和框架-->Ruby SDK和gems，我按照预期使用RBENV 2.3.1，每个gems都是最新的，我不必更新它们。所以我尝试通过运行

rails server

在终端机上，我得到了一个错误列表：

$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 2.6.6
- RUBY VERSION: 2.3.1 (2016-04-26 patchlevel 112) [x86_64-darwin15]
- INSTALLATION DIRECTORY: /Users/emilychiu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0
- USER INSTALLATION DIRECTORY: /Users/emilychiu/.gem/ruby/2.3.0
- RUBY EXECUTABLE: /Users/emilychiu/.rbenv/versions/2.3.1/bin/ruby
- EXECUTABLE DIRECTORY: /Users/emilychiu/.rbenv/versions/2.3.1/bin
- SPEC CACHE DIRECTORY: /Users/emilychiu/.gem/specs
- SYSTEM CONFIGURATION DIRECTORY: /Users/emilychiu/.rbenv/versions/2.3.1/etc
- RUBYGEMS PLATFORMS:
  - ruby
  - x86_64-darwin-15
- GEM PATHS:
   - /Users/emilychiu/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0
   - /Users/emilychiu/.gem/ruby/2.3.0
- GEM CONFIGURATION:
   - :update_sources => true
   - :verbose => true
   - :backtrace => false
   - :bulk_threshold => 1000
- REMOTE SOURCES:
   - https://rubygems.org/
- SHELL PATH:
   - /Users/emilychiu/.rbenv/versions/2.3.1/bin
   - /usr/local/Cellar/rbenv/1.0.0/libexec
   - /Users/emilychiu/.rbenv/shims
   - /Users/emilychiu/.rbenv/bin
   - /bin
   - /usr/bin
   - /sbin
   - /usr/sbin
   - /usr/local/bin
$ gem install --no-ri --no-rdoc bundler
Successfully installed bundler-1.12.5
1 gem installed
$ rbenv rehash
$ bundle --path=vendor/bundle
Using rake 11.2.2
Using concurrent-ruby 1.0.2
Using i18n 0.7.0
Using minitest 5.9.0
Using thread_safe 0.3.5
Using builder 3.2.2
Using erubis 2.7.0
Using mini_portile2 2.1.0
Using pkg-config 1.1.7
Using rack 2.0.1
Using nio4r 1.2.1
Using websocket-extensions 0.1.2
Using mime-types-data 3.2016.0521
Using arel 7.1.1
Using byebug 9.0.5
Using coffee-script-source 1.10.0
Using execjs 2.7.0
Using method_source 0.8.2
Using thor 0.19.1
Using debug_inspector 0.0.2
Using ffi 1.9.14
Using multi_json 1.12.1
Using rb-fsevent 0.9.7
Using puma 3.6.0
Using bundler 1.12.5
Using sass 3.4.22
Using tilt 2.0.5
Using spring 1.7.2
Using sqlite3 1.3.11
Using turbolinks-source 5.0.0
Using tzinfo 1.2.2
Using nokogiri 1.6.8
Using rack-test 0.6.3
Using sprockets 3.7.0
Using websocket-driver 0.6.4
Using mime-types 3.1
Using coffee-script 2.4.1
Using uglifier 3.0.1
Using rb-inotify 0.9.7
Using turbolinks 5.0.1
Using activesupport 5.0.0
Using loofah 2.0.3
Using mail 2.6.4
Using listen 3.0.8
Using rails-dom-testing 2.0.1
Using globalid 0.3.7
Using activemodel 5.0.0
Using jbuilder 2.6.0
Using rails-html-sanitizer 1.0.3
Using spring-watcher-listen 2.0.0
Using activejob 5.0.0
Using activerecord 5.0.0
Using actionview 5.0.0
Using actionpack 5.0.0
Using actioncable 5.0.0
Using actionmailer 5.0.0
Using railties 5.0.0
Using sprockets-rails 3.1.1
Using coffee-rails 4.2.1
Using jquery-rails 4.1.1
Using web-console 3.3.1
Using rails 5.0.0
Using sass-rails 5.0.6
Bundle complete! 15 Gemfile dependencies, 63 gems now installed.
Bundled gems are installed into ./vendor/bundle.

Answer 1

要在Rubymine中运行Rails server，请使用热键Ctrl+Alt+R而不是run菜单（请参见此手册https://www.jetbrains.com/help/ruby/2016.2/running-rails-server.html）。

在Rubymine之外，您的最新捆绑程序似乎是1.13.0.rc.1，而（可能）gemfile.lock正在寻找1.12。尝试gem uninstall bundler-v1.13.0.rc.1，然后再次运行bundle exec rails server或bundle exec rails s。