Question

我是红宝石的初学者。当我在gem中安装MySQL时，我遇到了一个困扰我很久的问题。我从brew安装MySQL，因为你知道计算机系统是OSX 10.10。我已经尝试了stackoverflow中可以找到的所有解决方案，但无法解决它。如：

 1. Install xcode-tool
 2. GEM  install mysql2 -- --with-mysql-dir=/usr/local/Cellar/mysql/5.5.25a
 3. List itgem install mysql2 -- --with-opt-dir=/usr/local/Cellar/mysql/5.5.25ae

依旧......

问题是：当我对命令进行编码时：gem install mysql 我收到了以下错误：

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

    /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/bin/ruby extconf.rb
checking for mysql_ssl_set()... *** 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=/Users/iclick/.rvm/rubies/ruby-2.0.0-p481/bin/ruby
    --with-mysql-config
    --without-mysql-config
/Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:434:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:519:in `try_link0'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:534:in `try_link'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:720:in `try_func'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:1004:in `block in have_func'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:895:in `block in checking_for'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:340:in `block (2 levels) in postpone'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:310:in `open'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:340:in `block in postpone'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:310:in `open'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:336:in `postpone'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:894:in `checking_for'
    from /Users/iclick/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/2.0.0/mkmf.rb:1003:in `have_func'
    from extconf.rb:45:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/iclick/.rvm/gems/ruby-2.0.0-p481@style/gems/mysql-2.9.1 for inspection.
Results logged to /Users/iclick/.rvm/gems/ruby-2.0.0-p481@style/extensions/x86_64-darwin-13/2.0.0-static/mysql-2.9.1/gem_make.out

宽恕我可怜的英语。^ _ ^。希望你的答案。

Answer 1

很开心，我已经解决了这个问题。当我执行命令gem update。我得到一个错误，然后，我认为问题是由gem引起的。所以，我执行命令gem get stable。然后执行命令brew unlink libyaml && brew link libyaml并成功安装mysql !!!

错误：安装mysql时出错：错误：无法构建gem原生扩展

1 个答案: