Content-Length mismatch, received xxxx bytes out of the expected xxxx

使用Composer 安装依赖时，控制栏显示报错：Content-Length mismatch, received xxxx bytes out of the expected xxxx （内容长度不匹配，收到的xxxx字节超出了预期的xxxx），将镜像切换为阿里云即可：

composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/