您已经激活了 minitest 5.5.1，但是您的 Gemfile 需要 minitest 4.7.5

Question

rails 服务器对我不起作用，当我运行 rails s -p 3005 时，出现以下错误：

Please report a bug if this causes problems.
/home/badrit-user/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:33:in `block in setup': You have already activated minitest 5.5.1, but your Gemfile requires minitest 4.7.5. Using bundle exec may solve this. (Gem::LoadError)
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:19:in `setup'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler.rb:120:in `setup'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/setup.rb:7:in `<top (required)>'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:110:in `require'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:110:in `rescue in require'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:35:in `require'
    from /home/badrit-user/work/seeloz_mobile/config/boot.rb:4:in `<top (required)>'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:106:in `require'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:106:in `require'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/gems/railties-4.1.8/lib/rails/app_rails_loader.rb:42:in `block in exec_app_rails'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/gems/railties-4.1.8/lib/rails/app_rails_loader.rb:32:in `loop'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/gems/railties-4.1.8/lib/rails/app_rails_loader.rb:32:in `exec_app_rails'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/gems/railties-4.1.8/lib/rails/cli.rb:5:in `<top (required)>'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:58:in `require'
    from /home/badrit-user/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:58:in `require'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/gems/railties-4.1.8/bin/rails:9:in `<top (required)>'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/bin/rails:23:in `load'
    from /home/badrit-user/.rvm/gems/ruby-2.0.0-p247@seeloz_mobile/bin/rails:23:in `<main>'

而且我检查了我的 Gemfile.lock，我已经 minitest (4.7.5)。

很奇怪，如果我运行这个 bundle exec rails s -p 3005，它就可以工作，那么为什么会这样？

解决此问题的解决方案是什么？（到运行它使用 rails s）

Answer 1

从错误信息中可以看出Using bundle exec may solve this.

bundle exec rails s -p 3005

It's weird, If I run this bundle exec rails s -p 3005, it's working, so Why this occurred ?

运行开始时带有 bundle exec 的命令，启动 gem 使用 Gemfile 从 app 目录安装的内容，没有 bundle exec 是运行 gem 系统中安装了什么。如您所见，您已成功在系统中安装 minitest 5.5.1 并在 Gemfile 中安装 minitest 4.7.5。

Ref

Answer 2

如果您还没有使用 bundler 的 binstubs 与 RVM 集成，您应该试一试！

这意味着您不必再输入 bundle exec。

设置：

一次，运行chmod +x $rvm_path/hooks/after_cd_bundler
每个项目一次，运行 bundle install -—binstubs

您已经激活了 minitest 5.5.1，但是您的 Gemfile 需要 minitest 4.7.5

You have already activated minitest 5.5.1, but your Gemfile requires minitest 4.7.5

bundle

ruby-on-rails

minitest