Bundler：在与gem捆绑安装期间，找不到具有可执行捆绑（Gem :: GemNotFoundException）的gem bundler（> = 0.a） [英] Bundler: can't find gem bundler (>= 0.a) with executable bundle (Gem::GemNotFoundException) during bundle install with gem

问题描述

我正在执行以下脚本：

gem install rdoc --no-document
gem install bundle
bundle

输出：

+ gem install rdoc --no-document
Successfully installed rdoc-6.1.1
1 gem installed
+ gem install bundle
Successfully installed bundle-0.0.1
Parsing documentation for bundle-0.0.1
Done installing documentation for bundle after 2 seconds
1 gem installed
1 gem installed
+ bundle install
/usr/lib/ruby/2.5.0/rubygems.rb:289:in `find_spec_for_exe': can't find gem bundler (>= 0.a) with executable bundle (Gem::GemNotFoundException)
    from /usr/lib/ruby/2.5.0/rubygems.rb:308:in `activate_bin_path'
    from /srv/myuser/.gem/ruby/2.5.0/bin/bundle:23:in `<main>'

我添加了 / srv / myuser / .gem / ruby​​ / 2.5.0 / bin 到我的路径，这样我就可以安装gems。

I've added /srv/myuser/.gem/ruby/2.5.0/bin to my path so I was able to install gems.

宝石环境显示

RubyGems Environment:
  - RUBYGEMS VERSION: 2.7.7
  - RUBY VERSION: 2.5.1 (2018-03-29 patchlevel 57) [x86_64-linux]
  - INSTALLATION DIRECTORY: /usr/lib/ruby/gems/2.5.0
  - USER INSTALLATION DIRECTORY: /srv/myuser/.gem/ruby/2.5.0
  - RUBY EXECUTABLE: /usr/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/bin
  - SPEC CACHE DIRECTORY: /srv/myuser/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: /etc
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /usr/lib/ruby/gems/2.5.0
     - /srv/myuser/.gem/ruby/2.5.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
     - "gem" => "--user-install"
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - /usr/local/sbin
     - /usr/local/bin
     - /usr/bin

宝石列表显示已安装的宝石。
在执行时也可以找到捆绑软件：

gem list shows the installed gems. I can also find bundle when I perform:

ls -ltrah /srv/myuser/.gem/ruby/2.5.0/bin

我也尝试安装捆绑软件，但这也无济于事。
我在做什么错了？

I've also tried to install bundler but that didn't also help. What am I doing wrong?

该捆绑包中的宝石没有显示任何内容。 gem spec bundle 正在显示它。

gem which bundle is showing nothing.gem spec bundle is showing it.

更新：我在运行bundle之前尝试安装bundler，但是在出现相同问题的同时：

Update: I tried to install bundler before running bundle but the same issue appears while:

宝石列表包显示

bundle (0.0.1)
bundler (2.0.1)

推荐答案

Bundler版本2引入了一项新功能，可以自动使用项目的 Gemfile.lock 中指定的Bundler版本。因此，如果您现有的 Gemfile.lock 在底部有这样的行

Bundler version 2 introduced a new feature to automatically use the version of Bundler specified in the Gemfile.lock of your project. Thus, if you have an existing Gemfile.lock with a line like this at the bottom

BUNDLED WITH
   1.17.3

Bundler将尝试使用捆绑器版本< 2.0。由于您仅安装了Bundler 2.0.1（和Rubygems> = 2.7.0），因此失败，并显示此毫无帮助的错误消息。

Bundler will try to run with a Bundler version < 2.0. Since you just have Bundler 2.0.1 (and Rubygems >= 2.7.0) installed, this fails with this rather unhelpful error message.

要解决此问题，您可以

• 从 Gemfile.lock 中删除​​行，并在各处使用bundler 2.x从现在开始，或者


• 使用 gem安装bundler 1.x版本install bundler -v'< 2.0'以使用 Gemfile.lock 指定的适当版本。

• remove the lines from your Gemfile.lock and to use bundler 2.x everywhere from now on, or
• install a bundler 1.x version with gem install bundler -v '< 2.0' to use the appropriate version as specified by your Gemfile.lock.

关于此的更多信息可以在捆绑服务者博客。

More information about this can be found on the Bundler blog.

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