导入 Homestead Box 报错?

RedWolf@DESKTOP-0F1O2IC MINGW64 ~/Downloads/lt-homestead-3-0-0-2017082400
$ vagrant box add metadata.json
==> box: Loading metadata for box 'metadata.json'
box: URL: file://C:/Users/RedWolf/Downloads/lt-homestead-3-0-0-2017082400/metadata.json
An error occurred while downloading the remote file. The error
message, if any, is reproduced below. Please fix this error and try
again.

Invalid file://hostname/, expected localhost or 127.0.0.1 or none
导入 Homestead Box 报错
系统 win10
Vagrant 2.0.3