报错：

Fatal error: require(): Failed opening required 'Composer/autoload.php' (include_path='.:') in /usr/bin/composer

解决：

1、查看composer位置：dpkg -L composer

/usr/share/php

2、找到php.ini

3、找到include_path.

添加

include_path='/usr/share/php';

4、保存即可