无法降级捆绑器

Question

我尝试安装克隆的项目。当我执行“捆绑安装”时，会显示以下消息：

$ bundle install
Bundler could not find compatible versions for gem "bundler":
In Gemfile:
rails (= 3.0.0) ruby depends on
bundler (~> 1.0.0) ruby

Current Bundler version:
bundler (1.6.2)

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

所以我做了以下事情：

gem uninstall bundler
gem install bundler --version '1.0.0'
Successfully installed bundler-1.0.0
1 gem installed

我进行“捆绑安装”，并且仍然收到相同的消息：

$ bundle install
Bundler could not find compatible versions for gem "bundler":
In Gemfile:
rails (= 3.0.0) ruby depends on
bundler (~> 1.0.0) ruby

Current Bundler version:
bundler (1.6.2)

This Gemfile requires a different version of Bundler.

Perhaps you need to update Bundler by running `gem install bundler`?

看来我无法将捆绑程序降级到“ 1.0.0”版本，知道吗？

Answer 1

如果您不需要多个版本的 Bundler，可以卸载较新的版本：

$ gem uninstall bundler -v 1.6.2

如果您有多个捆绑程序版本，您还可以从捆绑程序版本列表中进行选择：

$ gem uninstall bundler