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背景：我正在阅读 Michael Hartl 的“Ruby on Rails 3 Tutorial”一书。我已经到了设置heroku的地步。文本指示我使用 sqlite3，但似乎 heroku 不再允许使用 sqlite3 后端。所以，我正在尝试使用 postgres。

我正在使用 Mac，OS 10.6.8。

问题：我尝试做

$ git push heroku master

然后我得到

Counting objects: 69, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (55/55), done.
Writing objects: 100% (69/69), 26.69 KiB, done.
Total 69 (delta 5), reused 0 (delta 0)

-----> Heroku receiving push
-----> Ruby/Rails app detected
-----> Installing dependencies using Bundler version 1.2.0.rc.2
       Running: bundle install --without development:test --path vendor/bundle --    binstubs bin/ --deployment
       You are trying to install in deployment mode after changing
       your Gemfile. Run `bundle install` elsewhere and add the
       updated Gemfile.lock to version control.
       You have added to the Gemfile:
       * pg
       You have deleted from the Gemfile:
       * sqlite3
 !
 !     Failed to install gems via Bundler.
 !
 !     Heroku push rejected, failed to compile Ruby/rails app

关于“在其他地方运行'捆绑安装'”——在这种情况下，其他地方是什么意思？在另一个目录？我试过了，没有用。也没有要添加的 Gemfile.lock 文件。总结：我很困惑。

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回应 hgmnz：

$ bundle install
Fetching gem metadata from https://rubygems.org/.........
Enter your password to install the bundled RubyGems to your system: 
( --- edited out ---)
Installing pg (0.14.0) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb 
checking for pg_config... yes
Using config values from /sw/bin/pg_config
checking for libpq-fe.h... yes
checking for libpq/libpq-fs.h... yes
checking for pg_config_manual.h... yes
checking for PQconnectdb() in -lpq... no
checking for PQconnectdb() in -llibpq... no
checking for PQconnectdb() in -lms/libpq... no
Can't find the PostgreSQL client library (libpq)
*** 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:
( -- edited out --- )


Gem files will remain installed in /Users/adamshaw/.bundler/tmp/14373/gems/pg-0.14.0 for   inspection.
Results logged to /Users/adamshaw/.bundler/tmp/14373/gems/pg-0.14.0/ext/gem_make.out
An error occured while installing pg (0.14.0), and Bundler cannot continue.
Make sure that `gem install pg -v '0.14.0'` succeeds before bundling.

然后

$ sudo gem install pg -v '0.14.0'

然后

Building native extensions.  This could take a while...
ERROR:  Error installing pg:
    ERROR: Failed to build gem native extension.

        /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
checking for pg_config... yes
Using config values from /sw/bin/pg_config
checking for libpq-fe.h... yes
checking for libpq/libpq-fs.h... yes
checking for pg_config_manual.h... yes
checking for PQconnectdb() in -lpq... no
checking for PQconnectdb() in -llibpq... no
checking for PQconnectdb() in -lms/libpq... no
Can't find the PostgreSQL client library (libpq)
*** 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:
( --- edited out --- )

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/pg-0.14.0 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/pg-0.14.0/ext/gem_make.out
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2 回答 2

5

嗯，这似乎表明您已经修改Gemfile了包含pggem，但还没有运行bundle install（在您的开发机器上）来锁定这些 gem。运行bundle install将解决所有 gem 依赖项并生成一个新的Gemfile.lock. 那是您应该签入 git 然后尝试部署的文件。

在您的开发机器上运行以下命令：

bundle install
git add Gemfile.lock
git commit -m "Locking gems"
git push heroku # assumes default remote named heroku
于 2012-08-21T16:35:50.063 回答
1

您需要让 gem 安装程序知道您的 PostgreSQL 安装位置，因为它需要在安装时使用其中一些文件。

查看在 osx 上安装 pg gem 时出错

于 2012-08-21T21:19:03.437 回答