我最近遇到了这个错误。它昨天工作。我做有pg宝石！宝石不属于一个群体。
C:\Users\Chloe\workspace\>git push heroku
Counting objects: 34, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (34/34), done.
Writing objects: 100% (34/34), 9.32 KiB | 1.17 MiB/s, done.
Total 34 (delta 28), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Ruby app detected
remote: -----> Compiling Ruby/Rails
remote: -----> Using Ruby version: ruby-2.3.1
remote: ###### WARNING:
remote: Removing `Gemfile.lock` because it was generated on Windows.
remote: Bundler will do a full resolve so native gems are handled properly.
remote: This may result in unexpected gem versions being used in your app.
remote: In rare occasions Bundler may not be able to resolve your dependencies at all.
remote: https://devcenter.heroku.com/articles/bundler-windows-gemfile
remote:
remote: -----> Installing dependencies using bundler 1.15.2
remote: Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4
remote: The dependency tzinfo-data (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is
only for x86-mingw32, x86-mswin32, x64-mingw32, java. To add those platforms to the bundle, run `bundle lock --add-platform x86-mingw32 x86-mswin32 x64-mingw32 java`.
remote: Fetching gem metadata from https://rubygems.org/.........
remote: Fetching version metadata from https://rubygems.org/..
remote: Fetching dependency metadata from https://rubygems.org/.
remote: Resolving dependencies...
remote: Using rake 12.3.0
remote: Using concurrent-ruby 1.0.5
remote: Using minitest 5.11.1
remote: Using thread_safe 0.3.6
remote: Using builder 3.2.3
remote: Using erubis 2.7.0
remote: Using mini_portile2 2.3.0
remote: Using crass 1.0.3
remote: Using rack 2.0.3
remote: Using nio4r 2.2.0
remote: Using websocket-extensions 0.1.3
remote: Using mini_mime 1.0.0
remote: Using arel 7.1.4
remote: Using public_suffix 3.0.1
remote: Using aws_cf_signer 0.1.3
remote: Using bcrypt 3.1.11
remote: Using bundler 1.15.2
remote: Using rubyzip 1.2.1
remote: Using climate_control 0.2.0
remote: Using unf_ext 0.0.7.4
remote: Using mime-types-data 3.2016.0521
remote: Using netrc 0.11.0
remote: Using coffee-script-source 1.12.2
remote: Using execjs 2.7.0
remote: Using method_source 0.9.0
remote: Using thor 0.20.0
remote: Using orm_adapter 0.5.0
remote: Using multipart-post 2.0.0
remote: Using ffi 1.9.18
remote: Using temple 0.8.0
remote: Using tilt 2.0.8
remote: Using sexp_processor 4.10.0
remote: Using multi_json 1.13.0
remote: Using mimemagic 0.3.2
remote: Fetching pg 1.0.0
remote: Using puma 3.11.0
remote: Using rb-fsevent 0.10.2
remote: Using turbolinks-source 5.1.0
remote: Using i18n 0.9.1
remote: Using tzinfo 1.2.4
remote: Using nokogiri 1.8.1
remote: Using websocket-driver 0.6.5
remote: Using mail 2.7.0
remote: Using addressable 2.5.2
remote: Using city-state 0.0.13
remote: Using rack-test 0.6.3
remote: Using warden 1.2.7
remote: Using sprockets 3.7.1
remote: Using rack-proxy 0.6.3
remote: Using unf 0.1.4
remote: Using cocaine 0.5.8
remote: Using coffee-script 2.4.1
remote: Using uglifier 4.1.3
remote: Using mime-types 3.1
remote: Using faraday 0.13.1
remote: Using rb-inotify 0.9.10
remote: Using ruby_parser 3.10.1
remote: Using haml 5.0.4
remote: Using turbolinks 5.1.0
remote: Using activesupport 5.0.6
remote: Using loofah 2.1.1
remote: Using domain_name 0.5.20170404
remote: Using stripe 3.9.1
remote: Using sass-listen 4.0.0
remote: Using rails-dom-testing 2.0.3
remote: Using globalid 0.4.1
remote: Using activemodel 5.0.6
remote: Using jbuilder 2.7.0
remote: Using rails-html-sanitizer 1.0.3
remote: Using html2haml 2.2.0
remote: Using http-cookie 1.0.3
remote: Using sass 3.5.5
remote: Using activejob 5.0.6
remote: Using activerecord 5.0.6
remote: Using paperclip 5.1.0
remote: Using actionview 5.0.6
remote: Using rest-client 2.0.2
remote: Using actionpack 5.0.6
remote: Using cloudinary 1.8.2
remote: Using actioncable 5.0.6
remote: Using actionmailer 5.0.6
remote: Using railties 5.0.6
remote: Using sprockets-rails 3.2.1
remote: Using paperclip-cloudinary 1.3.1
remote: Using coffee-rails 4.2.2
remote: Using responders 2.4.0
remote: Using haml-rails 1.0.0
remote: Using jquery-rails 4.3.1
remote: Using rails 5.0.6
remote: Using sass-rails 5.0.7
remote: Using devise 4.4.0
remote: Using nested_form_fields 0.8.2
remote: Using rails-reverse-proxy 0.9.1
remote: Using devise-i18n 1.5.0
remote: Installing pg 1.0.0 with native extensions
remote: Bundle complete! 27 Gemfile dependencies, 94 gems now installed.
remote: Gems in the groups development and test were not installed.
remote: Bundled gems are installed into ./vendor/bundle.
remote: Bundle completed (9.80s)
remote: Cleaning up the bundler cache.
remote: Removing pg (0.21.0)
remote: The latest bundler is 1.16.1, but you are currently running 1.15.2.
remote: To update, run `gem install bundler`
remote: -----> Installing node-v6.11.1-linux-x64
remote: -----> Detecting rake tasks
remote: -----> Preparing app for Rails asset pipeline
remote: Running: rake assets:precompile
remote: rake aborted!
remote: Gem::LoadError: Specified 'postgresql' for database adapter, but the gem is not loaded. Add `gem 'pg'` to your Gemfile (and ensure its version is at the
minimum required by ActiveRecord).
remote: /tmp/build_a9d764dc04e2c3ac37be31055ec0e201/vendor/bundle/ruby/2.3.0/gems/activerecord-5.0.6/lib/active_record/connection_adapters/connection_specification.rb:176:in `rescue in spec'
... stacktrace ...
remote: Tasks: TOP => environment
remote: (See full trace by running task with --trace)
remote: !
remote: ! Precompiling assets failed.
remote: !
remote: ! Push rejected, failed to compile Ruby app.
remote:
remote: ! Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to project-staging.
remote:
To https://git.heroku.com/project-staging.git
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/project-staging.git'
答案 0 :(得分：4)
答案 1 :(得分：4)
我有同样的问题。
今天有一个新版本的pg gem（1/10/18） - v 1.0.0。在你的gem文件中：
Get-Service | select-object Status, Name, DisplayName, @{Name="ComputerName";Expression={$env:COMPUTERNAME}}
正如Chloe所建议的那样。
答案 2 :(得分：0)
如果您正在推动生产，请尝试将pg添加到生产组中，并确保sqlite处于开发和测试状态，或者不存在于gemfile中。
group :production do
gem 'pg'
gem 'rails_12factor'
end
修改
另外请确保你的pg版本低于你的activerecord版本，如果你在mac上，请在宝石文件中给你的pg一个版本号。