ruby-on-rails - 捆绑安装不适用于 bundler 2.0.1 的 rails-4.2.6

Question

RVM 已设置，ruby-2.4.0我创建了具有版本的新应用程序，

gem 'rails', '4.2.6'

我更新了捆绑器使用，

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

但是我在出现以下错误时bundle install，

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.

它要求我提供所需的较低版本的捆绑程序，为什么？上面应该怎么解决？

Answer 1

安装任何版本的捆绑程序（< 2.0，> = 1.3.0）。

例如

gem install bundler -v 1.17.3

接着

bundle _1.17.3_ install

它应该适合您的情况。

Answer 2

您Gemfile指定了与 2.xx 不兼容的旧捆绑程序版本尝试运行gem install bundler -v 1.3.0或您在您的文件中列出的任何版本Gemfile.lock（检查文件的最后）。