当您的Gemfile需要较旧版本的捆绑程序时，如何“捆绑安装”？

问题描述

我在一个具有Gemfile的较旧的Rails项目中。我尝试将宝石添加到Gemfile并 ，但出现错误：

I am in an older Rails project that has a Gemfile. I tried to add a gem to the Gemfile and bundle install but got an error:

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 (1.1.5)

This Gemfile requires a different version of Bundler.

使用的Rails版本需要捆绑器〜> 1.0.0，但我安装了1.1.5，正在将其用于其他项目。通常，我会使用 bundle exec ... ，但是由于我们正在谈论的是捆绑器，因此它要复杂得多。如何在使用Gemfile所需的捆绑程序版本的同时，将Gem文件添加到我的Gemfile中并运行 bundle install ？

The version of Rails it's using requires bundler ~>1.0.0 but I have 1.1.5 installed and am using it for my other projects. Usually I would use bundle exec ... but since this is bundler we are talking about, it's a little more complicated than that. How can I add a gem to my Gemfile and run bundle install while using the version of bundler that it requires?

推荐答案

首先，您需要安装捆绑软件的适当版本：

First you need to install the appropriate version of bundler:

% gem install bundler -v '~> 1.0.0'
Successfully installed bundler-1.0.22

然后强制rubygems使用所需的版本（请参阅此帖子）：

Then force rubygems to use the version you want (see this post):

% bundle _1.0.22_ install

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