Question

我正在尝试将非常基本的Rails应用程序部署到全新的Heroku应用程序中。我将Heroku应用程序连接到GitHub存储库并触发了第一次部署。 Heroku无法构建应用，因为“激活捆绑程序（2.0.1）失败”。

这是构建日志，其中的错误用!突出显示，为简洁起见[...]隐藏了一些部分：

-----> Ruby app detected
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.6.3
-----> Installing dependencies using bundler 2.0.2
       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
       [...]
       Bundle complete! 17 Gemfile dependencies, 59 gems now installed.
       [...]
       Bundle completed (47.25s)
       Cleaning up the bundler cache.
-----> Installing node-v10.15.3-linux-x64
-----> Installing yarn-v1.16.0
-----> Detecting rake tasks
 !
 !     Could not detect rake tasks
 !     ensure you can run `$ bundle exec rake -P` against your app
 !     and using the production group of your Gemfile.
 !     Activating bundler (2.0.1) failed:
 !     Could not find 'bundler' (2.0.1) required by your /tmp/build_19c87a31c0181b0ad80a21cb76d32d96/Gemfile.lock.
 !     To update to the latest version installed on your system, run `bundle update --bundler`.
 !     To install the missing version, run `gem install bundler:2.0.1`
 !     Checked in 'GEM_PATH=/tmp/build_19c87a31c0181b0ad80a21cb76d32d96/vendor/bundle/ruby/2.6.0', execute `gem env` for more information
 !     
 !     To install the version of bundler this project requires, run `gem install bundler -v '2.0.1'`
 !
       [...]
 !     Push rejected, failed to compile Ruby app.
 !     Push failed

我按照错误消息中的说明进行操作，但并不能解决问题：

 !     ensure you can run `$ bundle exec rake -P` against your app
 !     and using the production group of your Gemfile.

$ bundle exec rake -P
[...] # long output, but yes, I can run it.

$ RAILS_ENV=production bundle exec rake -P
[...] # long output, but again I can run it.

 !     Activating bundler (2.0.1) failed:
 !     Could not find 'bundler' (2.0.1) required by your /tmp/build_19c87a31c0181b0ad80a21cb76d32d96/Gemfile.lock.
 !     To update to the latest version installed on your system, run `bundle update --bundler`.
 !     To install the missing version, run `gem install bundler:2.0.1`

# I'm already using bundler 2.0.1:
$ bundler --version
Bundler version 2.0.1

Heroku says it supports bundler 2.X：

Ruby构建包现在将检查Gemfile.lock的内容，并使用基于BUNDLED WITH声明的捆绑程序版本。

我的Gemfile.lock指定BUNDLED WITH 2.0.1：

GEM
  remote: https://rubygems.org/
  specs: [...]

PLATFORMS
  ruby

DEPENDENCIES
  [...]

RUBY VERSION
   ruby 2.6.3p62

BUNDLED WITH
   2.0.1

我应该解决什么？

Answer 1

我通过反复试验找到了解决方案。我从构建日志中考虑了以下几行：

 -----> Installing dependencies using bundler 2.0.2
 [...]
 !     Activating bundler (2.0.1) failed:
 !     Could not find 'bundler' (2.0.1) required by your /tmp/build_19c87a31c0181b0ad80a21cb76d32d96/Gemfile.lock.

Heroku使用捆绑程序2.0.2，我最初认为它可以安装2.0.1 Gemfile.lock。事实并非如此。我删除了Gemfile.lock，安装了bundler 2.0.2，并用它再次捆绑：

rm Gemfile.lock
gem install bundler
bundle --version # Make sure the output is 2.0.2
bundle install

此重新生成的Gemfile.lock现在BUNDLED WITH 2.0.2，因此我能够成功地部署到Heroku。

如何修复Heroku中的“激活捆绑程序（2.0.1）失败”？

1 个答案: