Heroku：推送被拒绝，无法编译 Ruby 应用程序

我已经被困了一个星期试图解决这个问题。我目前一直在关注在线讲座，但是我完全遵循了所有内容，并且讲师并没有真正提供任何帮助。每当我尝试推送到 heroku 时，我都会收到以下信息：

初始化存储库，完成。 数物体：85，完成。 增量压缩最多使用 2 个线程。 压缩对象：100% (76/76)，完成。 写入对象：100% (85/85)，27.36 KiB，完成。 总计 85 个（增量 6），重复使用 0 个（增量 0）

-----> Ruby app detected
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.0.0
-----> Warning:
       Removing `Gemfile.lock` because it was generated on Windows.
       Bundler will do a full resolve so native gems are handled properly.
       This may result in unexpected gem versions being used in your app.
       In rare occasions Bundler may not be able to resolve your dependencies
 all.
       https://devcenter.heroku.com/articles/bundler-windows-gemfile
-----> Installing dependencies using Bundler version 1.5.2
       New app detected loading default bundler cache
       Running: bundle install --without development:test --path vendor/bundl
-binstubs vendor/bundle/bin -j4
       Your Gemfile lists the gem sqlite3 (>= 0) more than once.
       You should probably keep only one of them.
       While it's not a problem now, it could cause errors if you change the
sion of just one of them later.
       Your Gemfile lists the gem sqlite3 (>= 0) more than once.
       You should probably keep only one of them.
       While it's not a problem now, it could cause errors if you change the
sion of just one of them later.
       Your Gemfile lists the gem rspec-rails (= 2.6.1) more than once.
       You should probably keep only one of them.
       While it's not a problem now, it could cause errors if you change the
sion of just one of them later.
       Fetching gem metadata from https://rubygems.org/.........
       Fetching additional metadata from https://rubygems.org/..
       Resolving dependencies...
       Using builder (3.0.4)
       Using erubis (2.7.0)
       Using journey (1.0.4)
       Using rack (1.4.5)
       Using hike (1.2.3)
       Using tilt (1.4.1)
       Installing i18n (0.6.1)
       Using polyglot (0.3.3)
       Installing mime-types (1.25.1)
       Using tzinfo (0.3.38)
       Using bundler (1.5.2)
       Using coffee-script-source (1.6.3)
       Using execjs (2.0.2)
       Using json (1.8.1)
       Using thor (0.18.1)
       Installing multi_json (1.8.4)
       Installing rake (10.1.1)
       Installing arel (3.0.3)
       Using rack-cache (1.2)
       Using rack-test (0.6.2)
       Using rack-ssl (1.3.3)
       Using treetop (1.4.15)
       Using coffee-script (2.2.0)
       Using rdoc (3.12.2)
       Installing sass (3.2.13)
       Installing uglifier (2.4.0)
       Using sprockets (2.2.2)
       Using mail (2.5.4)
       Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
tension.
       /tmp/build_903734dc-f591-44eb-8891-428ba3caf9e0/vendor/ruby-2.0.0/bin/
y extconf.rb
       checking for sqlite3.h... no
       sqlite3.h is missing. Try 'port install sqlite3 +universal'
       or 'yum install sqlite-devel' and check your shared library search pat
the
       location where your sqlite3 shared library is located).
       *** extconf.rb failed ***
       Could not create Makefile due to some reason, probably lack of necessa
       libraries and/or headers.  Check the mkmf.log file for more details.
 may
       need configuration options.
       Provided configuration options:
       --with-opt-dir
       --without-opt-dir
       --with-opt-include
       --without-opt-include=${opt-dir}/include
       --with-opt-lib
       --without-opt-lib=${opt-dir}/lib
       --with-make-prog
       --without-make-prog
       --srcdir=.
       --curdir
       --ruby=/tmp/build_903734dc-f591-44eb-8891-428ba3caf9e0/vendor/ruby-2.0
bin/ruby
       --with-sqlite3-dir
       --without-sqlite3-dir
       --with-sqlite3-include
       --without-sqlite3-include=${sqlite3-dir}/include
       --with-sqlite3-lib
       --without-sqlite3-lib=${sqlite3-dir}/
       --enable-local
       --disable-local
       Gem files will remain installed in /tmp/build_903734dc-f591-44eb-8891-
ba3caf9e0/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.8 for inspection.
       Results logged to /tmp/build_903734dc-f591-44eb-8891-428ba3caf9e0/vend
bundle/ruby/2.0.0/gems/sqlite3-1.3.8/ext/sqlite3/gem_make.out
       Installing activesupport (3.2.13)
       Installing pg (0.17.1)
       An error occurred while installing sqlite3 (1.3.8), and Bundler cannot
ntinue.
       Make sure that `gem install sqlite3 -v '1.3.8'` succeeds before bundli

       Bundler Output: Your Gemfile lists the gem sqlite3 (>= 0) more than on

       You should probably keep only one of them.
       While it's not a problem now, it could cause errors if you change the
sion of just one of them later.
       Your Gemfile lists the gem sqlite3 (>= 0) more than once.
       You should probably keep only one of them.
       While it's not a problem now, it could cause errors if you change the
sion of just one of them later.
       Your Gemfile lists the gem rspec-rails (= 2.6.1) more than once.
       You should probably keep only one of them.
       While it's not a problem now, it could cause errors if you change the
sion of just one of them later.
       Fetching gem metadata from https://rubygems.org/.........
       Fetching additional metadata from https://rubygems.org/..
       Resolving dependencies...
       Using builder (3.0.4)
       Using erubis (2.7.0)
       Using journey (1.0.4)
       Using rack (1.4.5)
       Using hike (1.2.3)
       Using tilt (1.4.1)
       Installing i18n (0.6.1)
       Using polyglot (0.3.3)
       Installing mime-types (1.25.1)
       Using tzinfo (0.3.38)
       Using bundler (1.5.2)
       Using coffee-script-source (1.6.3)
       Using execjs (2.0.2)
       Using json (1.8.1)
       Using thor (0.18.1)
       Installing multi_json (1.8.4)
       Installing rake (10.1.1)
       Installing arel (3.0.3)
       Using rack-cache (1.2)
       Using rack-test (0.6.2)
       Using rack-ssl (1.3.3)
       Using treetop (1.4.15)
       Using coffee-script (2.2.0)
       Using rdoc (3.12.2)
       Installing sass (3.2.13)
       Installing uglifier (2.4.0)
       Using sprockets (2.2.2)
       Using mail (2.5.4)

       Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
tension.

       /tmp/build_903734dc-f591-44eb-8891-428ba3caf9e0/vendor/ruby-2.0.0/bin/
y extconf.rb
       checking for sqlite3.h... no
       sqlite3.h is missing. Try 'port install sqlite3 +universal'
       or 'yum install sqlite-devel' and check your shared library search pat
the
       location where your sqlite3 shared library is located).
       *** extconf.rb failed ***
       Could not create Makefile due to some reason, probably lack of necessa
       libraries and/or headers.  Check the mkmf.log file for more details.
 may
       need configuration options.

       Provided configuration options:
       --with-opt-dir
       --without-opt-dir
       --with-opt-include
       --without-opt-include=${opt-dir}/include
       --with-opt-lib
       --without-opt-lib=${opt-dir}/lib
       --with-make-prog
       --without-make-prog
       --srcdir=.
       --curdir
       --ruby=/tmp/build_903734dc-f591-44eb-8891-428ba3caf9e0/vendor/ruby-2.0
bin/ruby
       --with-sqlite3-dir
       --without-sqlite3-dir
       --with-sqlite3-include
       --without-sqlite3-include=${sqlite3-dir}/include
       --with-sqlite3-lib
       --without-sqlite3-lib=${sqlite3-dir}/
       --enable-local
       --disable-local


       Gem files will remain installed in /tmp/build_903734dc-f591-44eb-8891-
ba3caf9e0/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.8 for inspection.
       Results logged to /tmp/build_903734dc-f591-44eb-8891-428ba3caf9e0/vend
bundle/ruby/2.0.0/gems/sqlite3-1.3.8/ext/sqlite3/gem_make.out
       Installing activesupport (3.2.13)
       Installing pg (0.17.1)
       An error occurred while installing sqlite3 (1.3.8), and Bundler cannot
ntinue.
       Make sure that `gem install sqlite3 -v '1.3.8'` succeeds before bundli

 !
 !     Failed to install gems via Bundler.
 !
 !     Detected sqlite3 gem which is not supported on Heroku.
 !     https://devcenter.heroku.com/articles/sqlite3
 !

 !     Push rejected, failed to compile Ruby app

To [email protected] /cdn-cgi/l/email-protection:tranquil-ridge-7489.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to '[email protected] /cdn-cgi/l/email-protection:tranquil-ridge-7489.git'

我尝试按照之前问题的解决方案重建 gem 文件，删除 gemfile.lock 并运行捆绑安装程序，但我仍然收到此错误。

这是我当前的 gemFile：

source 'https://rubygems.org'

gem 'rails', '3.2.13'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'


# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer', :platforms => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# To use Jbuilder templates for JSON
# gem 'jbuilder'

# Use unicorn as the app server
# gem 'unicorn'

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger
# gem 'debugger'

group :development do
    gem 'sqlite3'
    gem 'rspec-rails', '2.6.1', :require => 'rspec-rails'
    gem 'faker', '0.3.1'
end

group :test do
    gem 'sqlite3'
    gem 'rspec-rails', '2.6.1', :require => 'rpec-rails'
    gem 'webrat', '0.7.1'
    gem 'factory_girl_rails', '1.0'
    gem 'turn', :require => false
end

group :production do
    gem 'pg'
end

对此有什么帮助吗？

我会推荐一些东西：

1）按照说明进行操作here https://devcenter.heroku.com/articles/bundler-windows-gemfile来处理Gemfile部署在 Windows 上生成的 Ruby 项目时出现的问题。

2) 在 Gemfile 中执行以下操作

group :test, :production do
  gem 'pg'
end

group :development do
  gem 'sqlite3'
end

这样就摆脱了sqlite3来自您的生产部署。使用它进行单元和集成测试，但使用 PostgreSQL 进行验收/功能测试，因为这是 Heroku 上选择的 RDBMS。另外，每个宝石仅参考一次。

3) 设置PostgreSQL 附加组件的 Hobby Dev 版本 https://addons.heroku.com/heroku-postgresql在 Heroku 上的部署环境中。