我安装了 ruby 版本 2.0.0.0p195 (2013-05-14) [x64-mingw32] 以及 ruby gem 版本 2.0.3。我最近也安装了 MySQL Community Server 5.6.12(32 位)安装程序。我正在尝试让 mysql 或 mysql2 gem 工作,然后安装服务器以了解有关 Ruby on Rails 的更多信息。
安装 mysql2 gem 时出现以下错误,谁能指出我正确的方向来安装 mysql2 gem,这样我就可以使用 ruby on rails 和 mysql,然后最终使用 web serer。
构建原生扩展。这可能需要一段时间...
错误:安装 mysql2 时出错:错误:无法构建 gem 原生扩展
> C:/Ruby200-x64/bin/ruby.exe extconf.rb checking for
> rb_thread_blocking_region()... *** 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=C:/Ruby200-x64/bin/ruby
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:431:in `try_do': The compiler
> failed to generate an executable file. (RuntimeError) You have to
> install development tools first. from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:516:in `try_link0' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:531:in `try_link' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:717:in `try_func' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1001:in `block in have_func'
> from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:892:in `block in
> checking_for' from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:337:in
> `block (2 levels) in postpone' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:307:in `open' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:337:in `block in postpone' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:307:in `open' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:333:in `postpone' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:891:in `checking_for' from
> C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1000:in `have_func' from
> extconf.rb:9:in `<main>'