VuePress dev server not working

[howar31]

After following the guide to fresh install the VuePress, I found that I cannot visit the localhost to see the webpage that VuePress built with command vuepress dev.

The installation steps I ran:

npm install -g vuepress
echo '# Hello VuePress' > README.md
vuepress dev

The build was successed, but I when opened the link in the browser, the server threw the errors like

UnhandledPromiseRejectionWarning: TypeError: res.getHeader is not a function

, details below:

Is there any way to solve this issue?

thanks

[ulivz]

Duplicate of #1417