Does not support windows powershell

[baihech]

Version

3.0.0-rc.5

Reproduction link

no link

Steps to reproduce

1：open windows powershell

2：run vue ui

3：new a project

4：click button "Add vue-router"

What is expected?

add dependencies vue-router

What is actually happening?

Throw error in windows powershell

TypeError: this.cwd is not a function
at PluginApi.getCwd (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules@vue\cli-ui\apollo-server\api\PluginApi.js:418:17)
at install (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules@vue\cli-ui\ui-defaults\suggestions.js:77:23)
at Object.handler (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules@vue\cli-ui\ui-defaults\suggestions.js:19:19)
at Object.activate (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules@vue\cli-ui\apollo-server\connectors\suggestions.js:82:31)
at suggestionActivate (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules@vue\cli-ui\apollo-server\schema\suggestion.js:55:67)
at resolveFieldValueOrError (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules\graphql\execution\execute.js:531:18)
at resolveField (C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules\graphql\execution\execute.js:495:16)
at C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules\graphql\execution\execute.js:339:18
at C:\Users\EDZ\AppData\Roaming\nvm\v8.10.0\node_modules@vue\cli\node_modules\graphql\jsutils\promiseReduce.js:25:10
at Array.reduce ()