An error occurred while installing rmagick (2.13.4), and Bundler cannot continue.

老版本的库: rmagick (2.13.4) 安装出错

第1步: 安装 imagemagick@6

brew install imagemagick@6

第2步: 临时的添加一些环境变量

export PATH="/usr/local/opt/imagemagick@6/bin:$PATH";
export LDFLAGS="-L/usr/local/opt/imagemagick@6/lib";
export CPPFLAGS="-I/usr/local/opt/imagemagick@6/include";
export PKG_CONFIG_PATH="/usr/local/opt/imagemagick@6/lib/pkgconfig";

第3步: 正常安装

gem install rmagick -v '2.13.4' --source 'https://gems.ruby-china.com/'