Ruby on rails 如何使用Rails 6的alpha版本？

我想在我的应用程序中使用alpha版本的rails。它在rubygems.org上不可用，所以我在我的文件中使用它：

gem 'rails', github: 'rails/rails', branch: 'master' # Use rails 6.0.0.alpha, FIXME: to be updated on rails release

bundle安装

...
Installing sprockets 3.7.2
Fetching sprockets-rails 3.2.1
Installing sprockets-rails 3.2.1
Using rails 6.0.0.alpha from git://github.com/rails/rails.git (at master@5df4efd)
Bundle complete! 1 Gemfile dependency, 40 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.

但是

rails--version

显示了奇怪的输出（我在Mac上使用RVM）：

但是

bundle-info-rails

似乎还可以：

The git source `git://github.com/rails/rails.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
  * rails (6.0.0.alpha 5df4efd)
    Summary: Full-stack web application framework.
    Homepage: http://rubyonrails.org
    Path: /Users/ro/.rvm/gems/ruby-2.5.1/bundler/gems/rails-5df4efd2fd08

如何修复alpha

rails

命令？

已修复

rvm删除ruby-2.3.1

（ruby的旧版本）

---

我也有旧的gemset，像

rvm gemset list\u all

和

rmv gemset list

这样的命令可能会很有用。

另一种解决方法是使用

bundle exec rails

或运行binstub

bin/rails

。

The git source `git://github.com/rails/rails.git` uses the `git` protocol, which transmits data without encryption. Disable this warning with `bundle config git.allow_insecure true`, or switch to the `https` protocol to keep your data secure.
  * rails (6.0.0.alpha 5df4efd)
    Summary: Full-stack web application framework.
    Homepage: http://rubyonrails.org
    Path: /Users/ro/.rvm/gems/ruby-2.5.1/bundler/gems/rails-5df4efd2fd08