composer install后报 file could not be downloaded

Question

报错截图如下

报错内容：
[ComposerDownloaderTransportException]
The "https://packagist.org/p/provider-2018-01%245364abf20a2335046831825d0f875bd8117c10523d85a475acb2056d7214e62e.
json" file could not be downloaded (HTTP/1.1 404 Not Found)

镜像已经换成国内的了

Answer 1

解决了，，不知道为什么用命令行的方式设置镜像失效了，于是手动在composer中设置了镜像