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我坚持在我的 Mac (10.6.8) 上设置 Ruby (1.9.3)、Rails 和 Postgres (9.0.8)。每次我运行时rails console都会出现以下错误：

/Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/pg-0.13.2/lib/pg.rb:4:in `require': dlopen(/Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/pg-0.13.2/lib/pg_ext.bundle, 9): Library not loaded: @loader_path/../lib/libssl.dylib (LoadError)
  Referenced from: /usr/lib/libpq.5.dylib
  Reason: Incompatible library version: libpq.5.dylib requires version 1.0.0 or later, but libssl.0.9.8.dylib provides version 0.9.8 - /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/pg-0.13.2/lib/pg_ext.bundle  
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/pg-0.13.2/lib/pg.rb:4:in `<top (required)>'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:68:in `require'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:66:in `each'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:66:in `block in require'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `each'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler/runtime.rb:55:in `require'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/bundler-1.1.4/lib/bundler.rb:119:in `require'
    from /Users/dc/Documents/Aptana Studio 3 Workspace/http/config/application.rb:7:in `<top (required)>'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/railties-3.2.6/lib/rails/commands.rb:39:in `require'
    from /Users/dc/.rvm/gems/ruby-1.9.3-head@global/gems/railties-3.2.6/lib/rails/commands.rb:39:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我真的不知道如何解决这个问题。我已经尝试安装不同的 Postgres 版本，但仍然遇到相同的错误。

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5 回答 5

5

I ran into this also, but was able to fix it following the instructions on python pip install psycopg2 install error.

First, make sure you have the most recent version of OpenSSL installed:

MacBook Pro:~> openssl version -a
OpenSSL 1.0.0c 2 Dec 2010
built on: Mon Jan  3 17:26:21 PST 2011
platform: darwin64-x86_64-cc
options:  bn(64,64) rc4(ptr,char) des(idx,cisc,16,int) idea(int) blowfish(idx) 
compiler: /usr/bin/gcc-4.2 -fPIC -fno-common -DOPENSSL_PIC -DZLIB -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -arch x86_64 -O3 -DL_ENDIAN -DMD32_REG_T=int -Wall
OPENSSLDIR: "/opt/local/etc/openssl"

...and note the OPENSSLDIR. On my system, it's in /opt/local/, because I installed it via MacPorts. I just needed to update the symlinks in /usr/lib/ for libssl.dylib and libcrypto.dylib so that they pointed to the correct versions in /opt/local/lib instead of the old version in usr/lib:

MacBook Pro:~> ls -la /usr/lib/libssl.dylib 
lrwxr-xr-x  1 root  wheel  33 Aug 17 12:25 /usr/lib/libssl.dylib -> /opt/local/lib/libssl.1.0.0.dylib
MacBook Pro:~> ls -la /usr/lib/libcrypto.dylib 
lrwxr-xr-x  1 root  wheel  36 Aug 17 12:28 /usr/lib/libcrypto.dylib -> /opt/local/lib/libcrypto.1.0.0.dylib

You can create the links by using the ln command:

sudo ln -s /path/to/postgres/install/lib/libcrypto.dylib /usr/lib/libcrypto.dylib
sudo ln -s /path/to/postgres/install/lib/libssl.dylib /usr/lib/libssl.dylib
于 2012-08-17T20:03:21.883 回答
5

如上所述对文件进行符号链接对我不起作用。pg 总是会查看 libssl-0.9.8.dylib。

这个问题似乎包含正确的答案：gem install pg --with-pg-config works, bundle failed

归结为

bundle config build.pg --with-pg-config=/Library/PostgreSQL/9.1/bin/pg_config

（或您所针对的任何 pg）

其次是gem uninstall pg然后bundle install

于 2012-08-28T01:07:52.483 回答
1

在一个项目中，这个解决方案（“gem install & uninstall pg”）很好。

但是在另一个项目中，它使用相同的 rails 和 Postgres 版本，我必须在 gemfile 中明确使用版本才能使其工作：

  gem 'pg', '0.14.1'
于 2012-11-15T10:43:13.460 回答
0

在这里找到了一个对我有用的解决方案： https ://github.com/PostgresApp/PostgresApp/issues/109

于 2013-05-23T02:53:05.883 回答
0

安装新的 PostgreSQL 版本（我用的是自制软件）

brew install postgres

然后重新安装 gem pg：

gem uninstall pg
gem install pg

希望能帮助到你。

于 2012-08-25T13:37:52.970 回答