这是我的proj
bundle install所以我按照它说的做，然后运行Fetching mysql2 0.5.2
Installing mysql2 0.5.2 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
...
...
...
Cannot find mysql_config at /usr/local/opt/mysql@5.6/bin/mysql_config
--with-ldflags=-L/usr/local/opt/openssl/lib
--with-cppflags=-I/usr/local/opt/openssl/include
-----
*** 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/admin/.asdf/installs/ruby/2.6.3/bin/$(RUBY_BASE_NAME)
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysql-config
To see why this extension failed to compile, please check the mkmf.log which can be found
here:
/Users/admin/development/locari/vendor/bundle/ruby/2.6.0/extensions/x86_64-darwin-18/2.6.0-static/mysql2-0.5.2/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in
/Users/admin/development/locari/vendor/bundle/ruby/2.6.0/gems/mysql2-0.5.2 for
inspection.
Results logged to
/Users/admin/development/locari/vendor/bundle/ruby/2.6.0/extensions/x86_64-darwin-18/2.6.0-static/mysql2-0.5.2/gem_make.out
An error occurred while installing mysql2 (0.5.2), and Bundler cannot continue.
Make sure that `gem install mysql2 -v '0.5.2' --source 'https://rubygems.org/'` succeeds
before bundling.
sudo gem install mysql2 -v '0.5.2' --source它安装得很好！但是，当我再次运行$ sudo gem install mysql2 -v '0.5.2' --source 'https://rubygems.org/'
Building native extensions. This could take a while...
Successfully installed mysql2-0.5.2
Parsing documentation for mysql2-0.5.2
Done installing documentation for mysql2 after 0 seconds
1 gem installed
时，会遇到相同的错误。我尝试在brew中卸载，取消链接并重新安装bundle install。
接下来我可以尝试什么？
答案 0 :(得分：0)
我找到了答案。我需要先运行这些命令，然后才能运行：
bundle config --local build.mysql2 "--with-cppflags=-I/usr/local/opt/openssl/include"
bundle config --local build.mysql2 "--with-ldflags=-L/usr/local/opt/openssl/lib"
然后当我运行bundle install时，它终于起作用了
答案 1 :(得分：0)
bundler一起使用。尝试在您的应用程序目录中运行它：
bundle config --local build.mysql2 "--with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include"
这仅针对您的应用程序进行设置，如果其他人需要类似的配置，则可以方便地检查您的存储库。但是您也可以在计算机上进行全局配置，方法是将--local替换为--global，它将应用于用户帐户中的所有bundle install命令。
这实际上并没有为我工作，但我会把它留在这里，因为它应该有效。我基本上只需要跑步：
gem install mysql2 -v '0.5.3' -- --with-ldflags=-L/usr/local/opt/openssl/lib --with-cppflags=-I/usr/local/opt/openssl/include
即使设置此构建配置也应该这样做，而不是使用捆绑程序。