composer安装laravel出现的问题 求解答

[xufeiyue001]

Crafting application...
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Your requirements could not be resolved to an installable set of packages.

Problem 1

Installation request for league/flysystem 1.0.49 -> satisfiable by league/flysystem[1.0.49].
league/flysystem 1.0.49 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
Problem 2
league/flysystem 1.0.49 requires ext-fileinfo * -> the requested PHP extension fileinfo is missing from your system.
laravel/framework v5.7.19 requires league/flysystem ^1.0.8 -> satisfiable by league/flysystem[1.0.49].
Installation request for laravel/framework v5.7.19 -> satisfiable by laravel/framework[v5.7.19].

To enable extensions, verify that they are enabled in your .ini files:

C:\phpStudy\PHPTutorial\php\php-7.2.1-nts\php.ini
You can also run php --ini inside terminal to see which files are used by PHP in CLI mode.
Application ready! Build something amazing.
laravel

[下雨的声音丶]

叫你把php的 fileinfo 扩展打开

[xuzuning]

只有 laravel 放弃了 composer 依赖，才可能真正强大
由于网络和墙的原因，约定的加载项无法下载，从而导致问题的出现

其实 composer 就是垃圾，其强制捆绑的行径，并不亚于特朗普

[yt_php]

可能是扩展问题 看下lara手册 安装所需要打开的php扩展 在php.ini中打开相应的扩展即可

[lanshs]

the requested PHP extension fileinfo is missing from your system.
改一下配置文件，加上这个拓展

[He195501]

第一种：打开extension=php_fileinfo.dll 就可以了 第二种：用cmd命令看下你的 php -v 版本是多少 如果不是7.2.1的话 你在系统变量中把你的版本更换下（https://blog.csdn.net/haisley/article/details/82080927） 记得还需要把你的bat和phar放在你对应的php版本下面 同php.exe目录

[pig510520]

fileinfo 扩展问题 打开后 重启下服务