Building native extensions. This could take a while... ERROR: Error installing mysql: ERROR: Failed to build gem native extension. current directory: /home/fz/.rvm/gems/ruby-2.3.0/gems/mysql-2.9.1/ext/mysql_api /home/fz/.rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20160603-21721-69utdl.rb extconf.rb checking for mysql_query() in -lmysqlclient... no checking for main() in -lm... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lz... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lsocket... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lnsl... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lmygcc... no checking for mysql_query() in -lmysqlclient... no *** 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=/home/fz/.rvm/rubies/ruby-2.3.0/bin/$(RUBY_BASE_NAME) --with-mysql-config --without-mysql-config --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/lib --with-mysqlclientlib --without-mysqlclientlib --with-mlib --without-mlib --with-mysqlclientlib --without-mysqlclientlib --with-zlib --without-zlib --with-mysqlclientlib --without-mysqlclientlib --with-socketlib --without-socketlib --with-mysqlclientlib --without-mysqlclientlib --with-nsllib --without-nsllib --with-mysqlclientlib --without-mysqlclientlib --with-mygcclib --without-mygcclib --with-mysqlclientlib --without-mysqlclientlib To see why this extension failed to compile, please check the mkmf.log which can be found here: /home/fz/.rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/mysql-2.9.1/mkmf.log extconf failed, exit code 1 Gem files will remain installed in /home/fz/.rvm/gems/ruby-2.3.0/gems/mysql-2.9.1 for inspection. Results logged to /home/fz/.rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/mysql-2.9.1/gem_make.out
出现这个错误,是因为少安装了一个lib, 执行
sudo apt-get install libmysqlclient-dev