不能脚手架离子项目模板下载404？

Question

当我尝试开始一个新的ionic项目时，我一直收到以下错误。这是一种修改url的方法吗？我在浏览器中复制了url https://github.com/driftyco/ionic-starter-tab/archive/master.zip，它也返回404。

PS D:\Users\....\Source\Workspaces> ionic start app tab
Creating Ionic app in folder D:\Users\....\Source\Workspaces\app based on tab project
Downloading: https://github.com/driftyco/ionic-app-base/archive/master.zip
[=============================]  100%  0.0s
Downloading: https://github.com/driftyco/ionic-starter-tab/archive/master.zip
Not found: https://github.com/driftyco/ionic-starter-tab/archive/master.zip (404)
Please verify the url and try again.
Please verify you are using a valid URL or a valid ionic starter.
View available starter templates: `ionic start --list`
More info available at:
http://ionicframework.com/getting-started/
https://github.com/driftyco/ionic-cli

Answer 1

从昨天开始，我尝试了很多次，但总是得到相同的错误。但是，我关闭了powershell窗口并打开了一个新窗口。错误也就消失了。但是为什么呢？