我在尝试为 Rails 安装 gem install mysql2 -v '0.3.17' 时遇到一些问题。当我尝试通过运行 gem install mysql2 -v '0.3.17' 或 gem install mysql2 -v '0.3.17' 来安装它时,出现以下错误:
ERROR: Error installing mysql2:
ERROR: Failed to build gem native extension.
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the file for more
details. You may need configuration options.
Provided configuration options:
--with-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
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysql-config
--without-mysql-config
Gem files will remain installed in `..../gems/ruby-1.9.3-p392/gems/mysql2-0.3.17 for inspection`.
Results logged to `.../gems/ruby-1.9.3-p392/extensions/x86_64-darwin-14/1.9.1/mysql2-0.3.17/gem_make.out`
我怎样才能解决这个问题并成功安装mysql2?
谢谢大家。
我在 Ubuntu 15.04 中,遇到了与上述相同的错误。
I did :
sudo apt-get install libmysqlclient-dev
之后我做了:
gem install mysql2
现在我可以成功地做到
rails new <app_name> -d mysql
没有任何错误。
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