weex preview报错

[muniana]

× Install fail! Error: Unsupported URL Type: npm:string-width@^4.2.0
Error: Unsupported URL Type: npm:string-width@^4.2.0
at parseUrl (C:\Users\h.wx\core\node_modules_npm-package-arg@4.2.1@npm-package-arg\npa.js:186:13)
at npa (C:\Users\h.wx\core\node_modules_npm-package-arg@4.2.1@npm-package-arg\npa.js:79:12)
at _install (C:\Users\h.wx\core\node_modules_npminstall@3.28.1@npminstall\lib\install.js:62:11)
at _install.next ()
at onFulfilled (C:\Users\h.wx\core\node_modules_co@4.6.0@co\index.js:65:19)
at C:\Users\h.wx\core\node_modules_co@4.6.0@co\index.js:54:5
at new Promise ()
at co (C:\Users\h.wx\core\node_modules_co@4.6.0@co\index.js:50:10)
at toPromise (C:\Users\h.wx\core\node_modules_co@4.6.0@co\index.js:118:63)
at next (C:\Users\h.wx\core\node_modules_co@4.6.0@co\index.js:99:29)

Makes sure these boxes are checked befor submitting your issue - thank you!

• [] If you encounter any problems using the tool, please check if there has a new version to update(Run weex update [pluginname]@latest).
• [] Check the FAQ, make sure there have not the same issue.

Your development environment

• Check weex-toolkit verison (Run weex -v)
• Detact what's wrong with your environment (Run weex doctor)
• Which platform (Win/Mac/Ubuntu..)

The key error stack message.

Steps to reproduce the problem.(Maybe a dotwe link)