AWS 捆绑安装错误：在捆绑之前确保 `gem install memcached -v '1.8.0'` 成功

Question

由于捆绑安装错误，我无法将我的 rails 应用程序部署到弹性 beanstalk。这是完整的日志：

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

      /opt/rubies/ruby-2.1.5/bin/ruby extconf.rb 
  checking for sasl/sasl.h... no
  Please install SASL to continue. The package is called libsasl2-dev on Ubuntu and cyrus-sasl on Gentoo.
  *** 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=/opt/rubies/ruby-2.1.5/bin/ruby

  extconf failed, exit code 1

  Gem files will remain installed in /opt/rubies/ruby-2.1.5/lib/ruby/gems/2.1.0/gems/memcached-1.8.0 for inspection.
  Results logged to /opt/rubies/ruby-2.1.5/lib/ruby/gems/2.1.0/extensions/x86_64-linux/2.1.0-static/memcached-1.8.0/gem_make.out
  An error occurred while installing memcached (1.8.0), and Bundler cannot
  continue.
  Make sure that `gem install memcached -v '1.8.0'` succeeds before bundling. (Executor::NonZeroExitStatus)

我最近通过 rvm 更新到 ruby​​ 2.1.5（我之前运行的是 ruby​​ 2.0.0），这可能导致我的问题？

Answer 1

它在运行 linux 的 aws ec2 t1.micro 实例上

假设这是 Amazon 的 linux 发行版（基于 yum 的发行版），您可以查看错误消息并得出解决方案。

请安装 SASL 以继续。该软件包在 Ubuntu 上称为 libsasl2-dev

对于 Ubuntu，你会使用

sudo apt-get install libsasl2-dev

对于您的操作系统，您需要使用yum。不确定确切的包名称，但您可以尝试

sudo yum search libsasl

并找到libsasl2-dev 的一些变体。然后运行

sudo yum install <package name>

Answer 2

由于您使用的是 EB，您是否尝试过将 libsasl2-dev 添加到 Elastic Beanstalk 配置文件中的包中？