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      1. 尝试使用 mysql2 gem 安装应用程序时出错

        Error when trying to install app with mysql2 gem(尝试使用 mysql2 gem 安装应用程序时出错)
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                  本文介绍了尝试使用 mysql2 gem 安装应用程序时出错的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我正在尝试安装一个使用 mysql2 gem 的开源 Rails 3.2.21 应用程序,但是当我尝试运行 bundle 命令时,我收到以下错误:

                  Im trying to install an open source rails 3.2.21 application that uses the mysql2 gem, but when i try and run the bundle commant I get the following error:

                  Fetching: mysql2-0.3.18.gem (100%)
                  Building native extensions.  This could take a while...
                  p
                  ERROR:  Error installing mysql2:
                      ERROR: Failed to build gem native extension.
                  
                      /Users/my_username/.rvm/rubies/ruby-2.1.2/bin/ruby -r ./siteconf20150614-72129-orqsb7.rb extconf.rb
                  checking for ruby/thread.h... yes
                  checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
                  checking for rb_thread_blocking_region()... yes
                  checking for rb_wait_for_single_fd()... yes
                  checking for rb_hash_dup()... yes
                  checking for rb_intern3()... yes
                  -----
                  Using mysql_config at /usr/local/bin/mysql_config
                  -----
                  checking for mysql.h... yes
                  checking for errmsg.h... yes
                  checking for mysqld_error.h... yes
                  -----
                  Don't know how to set rpath on your system, if MySQL libraries are not in path mysql2 may not load
                  -----
                  -----
                  Setting libpath to /usr/local/Cellar/mysql/5.6.25/lib
                  -----
                  creating Makefile
                  
                  make "DESTDIR=" clean
                  
                  make "DESTDIR="
                  compiling client.c
                  compiling infile.c
                  compiling mysql2_ext.c
                  compiling result.c
                  linking shared-object mysql2/mysql2.bundle
                  ld: warning: directory not found for option '-L/Users/travis/.sm/pkg/active/lib'
                  ld: library not found for -lssl
                  clang: error: linker command failed with exit code 1 (use -v to see invocation)
                  make: *** [mysql2.bundle] Error 1
                  
                  make failed, exit code 2
                  
                  Gem files will remain installed in /Users/my_username/.rvm/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/gems/mysql2-0.3.18 for inspection.
                  Results logged to /Users/my_username/.rvm/rubies/ruby-2.1.2/lib/ruby/gems/2.1.0/extensions/x86
                  

                  我尝试卸载我通过自制软件安装的每个版本的 mysql 并重新安装它们,如下所示:

                  I tried uninstalling every version of mysql I installed via homebrew and reinstalling them, like so:

                  brew uninstall --force mysql && brew install mysql
                  

                  然后运行:

                  sudo gem install mysql2
                  

                  正如此处提出的许多类似问题所建议的那样,但仍然导致与上述相同的错误.

                  As suggested by a number of similar questions asked on here, but it still results in the same error as above.

                  请有人提供有关如何启动和运行它的指导吗?

                  Please could someone offer guidance on how to get this up and running?

                  推荐答案

                  错误日志说:

                  ld: library not found for -lssl
                  

                  所以,你需要安装libssl:

                  brew install openssl
                  

                  <小时>

                  正如评论中指出的那样,可能需要导出库的路径.


                  As it was pointed out in comments, there might be a need to export the path to the library.

                  export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/openssl/lib/
                  

                  这篇关于尝试使用 mysql2 gem 安装应用程序时出错的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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