rake 测试后出错，ruby on rails

Question

我关注了 Hartl https://www.railstutorial.org/book/static_pages#sec-getting_started_with_testing 的 rails tutorial 并安装了所需的一切，到目前为止，除了我运行 rake test 时，它都可以正常工作。

测试运行，但之后我收到一系列错误，如下所示。我不知道这些是什么以及如何解决它们。

有什么想法吗？

/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/tmux.rb:35:in version': undefined method[]' for nil:NilClass (NoMethodError) 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/tmux.rb:194:in _check_available' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/base.rb:59:in initialize' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:92:in new' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:92:in add' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:64:in block (2 levels) in detect' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:62:in each' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:62:in detect' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:62:in block 在检测' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:61:in each' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier/detected.rb:61:in detect' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier.rb:105:in initialize' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier.rb:42:in new' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/notiffany-0.0.6/lib/notiffany/notifier.rb:42:in connect' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/guard-2.12.5/lib/guard/notifier.rb:11:in connect' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/guard-2.12.5/lib/guard/notifier.rb:31:in notify' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/guard-compat-1.2.1/lib/guard/compat/plugin.rb:113:in notify' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/guard-minitest-2.4.4/lib/guard/minitest/notifier.rb:31:in notify' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/guard-minitest-2.4.4/lib/guard/minitest/reporter.rb:10:in report' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/minitest-5.6.1/lib/minitest.rb:638:in each' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/minitest-5.6.1/lib/minitest.rb:638:in report' 来自/home/cuser/.rvm/gems/ruby-2.2.1/gems/minitest-5.6.1/lib/minitest.rb:134:in run' from /home/cuser/.rvm/gems/ruby-2.2.1/gems/minitest-5.6.1/lib/minitest.rb:56:in block in autorun'

Answer 1

你在使用 tmux 吗？如果没有，那么我将删除告诉 tmux 在测试完成后通知您的配置。此配置可能在 test_helper.rb 中，但如果不查看您正在遵循的教程，就很难知道。

Answer 2

安装 tmux 实际上为我解决了这个问题！