Laravel–项目报错the requested PHP extension fileinfo is missing from your system.

执行下面的命令时，出现错误

composer install
Problem 1

– intervention/image 2.3.8 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.

出现此错误的原因是php.ini中的fileinfo扩展没有开启，开启 extension=php_fileinfo.dll，再重新执行命令安装就可以了。