为什么捆绑器不安装 JSON gem? [英] Why won't bundler install JSON gem?

问题描述

尝试运行 cap production deploy 时出现以下错误.

I get the following error when attempting to run cap production deploy.

DEBUG [dc362284]    Bundler::GemNotFound: Could not find json-1.8.1.gem for installation
DEBUG [dc362284]    An error occurred while installing json (1.8.1), and Bundler cannot continue.
DEBUG [dc362284]    Make sure that `gem install json -v '1.8.1'` succeeds before bundling.

重要的是要注意这个部署是有效的，而不是我升级到 Ruby 2.1.0 以消除编码错误.我在本地升级，效果很好.我运行了 rvm install 2.1.0 和 rvm use 2.1.0 然后更改了我的 .ruby-version 文件以反映这次 Ruby 升级.

It may be important to note that this deployment was working, than I upgraded to Ruby 2.1.0 to remove an encoding error. I upgraded locally which worked fine. I ran rvm install 2.1.0 and rvm use 2.1.0 then changed my .ruby-version file to reflect this Ruby upgrade.

bundle install 命令在本地工作，但是当我 ssh 到目标服务器并运行此命令时会产生与上述相同的错误.

The bundle install command works locally, but produces the same above error when I ssh onto the destination server and run this command.

如果我运行 gem list 我可以在 gem 列表中看到这个.

If I run gem list I can see this in the list of gems.

...
jquery-rails (3.0.4)
json (1.8.1)
less (2.3.2)
...

如果我尝试推荐的解决方案 gem install json -v '1.8.1' 在本地和目标服务器上，我会得到以下输出:

If I try the recommended solution gem install json -v '1.8.1' Locally and on the destination server I get the following output:

Building native extensions.  This could take a while...
Successfully installed json-1.8.1
Parsing documentation for json-1.8.1
Done installing documentation for json after 0 seconds
1 gem installed

看来 gem 已安装，对吧?为什么会这样?我该如何解决这个问题?任何帮助将不胜感激.

So it appears the gem is installed, right? Why is this happening? How can I solve this? Any help would be greatly appreciated.

推荐答案

因此，经过半天的时间，几乎在发布我的问题后，我立即找到了答案.Bundler 1.5.0 有一个错误，它无法将默认 gem 识别为 在此处引用

So after a half day on this and almost immediately after posting my question I found the answer. Bundler 1.5.0 has a bug where it doesn't recognize default gems as referenced here

解决方案是使用 gem install bundler -v '= 1.5.1'

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