对于bundler 2.0.1，Bundle install不适用于rails-4.2.6

Question

RVM在ruby-2.4.0上设置我创建了具有版本的新应用程序，

gem 'rails', '4.2.6'

我用bund更新了bundler，

gem update --system
gem install bundler
bundle version
# Bundler version 2.0.1 (2019-01-04 commit d7ad2192f)

但是我在bundle install时遇到了错误，

Fetching gem metadata from https://rubygems.org/.............
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies...
Bundler could not find compatible versions for gem "bundler":
  In Gemfile:
    rails (= 4.2.6) was resolved to 4.2.6, which depends on
      bundler (< 2.0, >= 1.3.0)

  Current Bundler version:
    bundler (2.0.1)
This Gemfile requires a different version of Bundler.
Perhaps you need to update Bundler by running `gem install bundler`?

Could not find gem 'bundler (< 2.0, >= 1.3.0)', which is required by gem 'rails (= 4.2.6)', in any of the sources.

它要求我提供更低版本的Bundler，为什么？我应该如何解决？

Answer 1

您的Gemfile指定与2.x.x不兼容的较旧的bundler版本。尝试运行gem install bundler -v 1.3.0或您在Gemfile.lock中列出的任何版本（查看文件的最后部分）。

Answer 2

安装任何版本的捆绑器（<2.0，> = 1.3.0）。

例如

gem install bundler -v 1.17.3

然后

bundle _1.17.3_ install

它应该适合你的情况。