yarn --registry is error command when create new project

[ws456999]

Version

3.0.0-alpha.8

Reproduction link

https://github.com/vuejs/vue-cli

Steps to reproduce

command-line output：

Vue CLI v3.0.0-alpha.8
✨  Creating project in /Users/a39/Desktop/profile/new-vue.
🗃  Initializing git repository...
⚙  Installing CLI plugins. This might take a while...


  error: unknown option `--registry'

 ERROR  command failed: yarn --registry=https://registry.npm.taobao.org

What is expected?

when i use yarn and select taobao source

use:

yarn config set registry https://registry.npm.taobao.org

What is actually happening?

when i use yarn and select taobao source

yarn --registry=https://registry.npm.taobao.org

[ws456999]

btw: how can i clear the cache of the taobao source selection?

[yyx990803]

@ws456999 in ~/.vuerc, set useTaobaoRegistry to false