Ruby on rails 使用sqlite3部署到Heroku时出错

我正试图将我的rails应用程序部署到Heroku，这样我就可以拥有一个临时服务器，但仍会遇到以下错误

我已经从gemfile中删除了'sqlite3'gem，并确保'pg'gem当前已安装，还将my database.yml更改为以下内容…但仍然会出现sqlite3错误。有什么建议吗

development:
adapter: postgresql
encoding: unicode
database: app-name
pool: 5
port: 5432
host: localhost

test:
adapter: postgresql
encoding: unicode
database: app-name
pool: 5
port: 5432
host: localhost

Gem:：Installer:：ExtensionBuildError:错误：无法生成Gem本机扩展

   /tmp/build_a4c50f3d-ca0b-4757-b846-70093165281e/vendor/ruby-2.0.0/bin/ruby extconf.rb
   checking for sqlite3.h... no
   sqlite3.h is missing. Try 'port install sqlite3 +universal',
   'yum install sqlite-devel' or 'apt-get install libsqlite3-dev'
   and check your shared library search path (the
   location where your sqlite3 shared library is located).
   *** extconf.rb failed ***
   Could not create Makefile due to some reason, probably lack of necessary
   libraries and/or headers.  Check the mkmf.log file for more details.  You 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_a4c50f3d-ca0b-4757-b846-70093165281e/vendor/ruby-2.0.0/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_a4c50f3d-ca0b-4757-b846-70093165281e/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.9 for inspection.
   Results logged to /tmp/build_a4c50f3d-ca0b-4757-b846-70093165281e/vendor/bundle/ruby/2.0.0/gems/sqlite3-1.3.9/ext/sqlite3/gem_make.out
   Installing transitions (0.1.11)
   Installing pg (0.17.0)
   Installing ffi (1.9.3)
   An error occurred while installing sqlite3 (1.3.9), and Bundler cannot continue.
   Make sure that `gem install sqlite3 -v '1.3.9'` succeeds before bundling.

!！ ! 无法通过捆绑程序安装gems。 ! ! 检测到Heroku上不支持的sqlite3 gem。 ! !

---

!！推送被拒绝，未能编译Ruby应用程序

我也收到了相同的错误消息。我通过在Sublime Text 2编辑器中编辑Activerecord/Activesupport gems解决了此问题。我用postgresql替换了sqlite3。但是必须确保已下载并安装了相应版本的postgresql。错误消息是开发人员最好的朋友。了解阅读并理解错误信息。一开始很令人沮丧，但实际上，是你最好的朋友和好老师。谢谢大家

在这里发布你的宝石文件。删除宝石锁文件，然后再次捆绑宝石。我真的收到了。我没有在更改gemfile后进行提交，这使它无法注意到更改。谢谢你的回复