问题在安装PG宝石正常 [英] Problem installing pg gem properly

问题描述

我有一个Rails应用程序，我想获得在Amazon EC2实例上运行。这个应用程序已经得到很好的测试在各种Linux，OS X和Windows系统。

在EC2服务器，我已经建立了PostgreSQL的9，从源头。起初，PG创业板不会安装，但我建立它与下面的命令：

 创业板安装PG  -  --with-pgsql的-LIB =在/ usr /本地/ pgSQL的/ lib目录--with-pgsql的-配置=在/ usr /本地/ pgsql里/斌/ pg_config
 

这似乎是建立正常。然而，当我运行rake任务，如'耙分贝：迁移我收到以下错误：

 耙中止！
libpq.so.5：无法打开共享对象文件：没有这样的文件或目录 -  /home/ec2-user/.rvm/gems/ruby-1.8.7-p334/gems/pg-0.11.0/lib/pg_ext。所以
 

解决方案

从错误信息和您的查找命令输出的描述，它可能是的/ usr /本地/ pgSQL的/ lib目录不在路漫漫其库动态链接器的搜索。尝试添加该目录为 /etc/ld.so.conf中（或类似），或者设置 LD_LIBRARY_PATH 将其列入在运行前，耙。

I have a rails app that I am trying to get running in an Amazon EC2 instance. This app has been tested properly on various Linux, OS X and Windows systems.

On the EC2 server, I have built PostgresSQL 9 from source. At first, the 'pg' gem wouldn't install but I built it with the following command:

gem install pg -- --with-pgsql-lib=/usr/local/pgsql/lib --with-pgsql-config=/usr/local/pgsql/bin/pg_config

This seemed to build properly. However, when I run a rake task, such as 'rake db:migrate' I get the following error:

rake aborted!
libpq.so.5: cannot open shared object file: No such file or directory - /home/ec2-user/.rvm/gems/ruby-1.8.7-p334/gems/pg-0.11.0/lib/pg_ext.so

解决方案

From the error message and your description of your 'find' command output, it's possible that /usr/local/pgsql/lib is not in the path the dynamic linker searches for its libraries. Try adding that directory to /etc/ld.so.conf (or similar), or set LD_LIBRARY_PATH to include it before you run rake.

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