Webpack configuration, running terminal display problem

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I just wrote a test demo,. I don"t know if it"s my webpack configuration problem or something. When I run it,
webpack-dev-server-- mode=development-- inline-- progress-- config build/webpack.dev.conf.js
the terminal display is as follows:

item

Webpack front-end vue.js javascript

Jun.09,2021

find the configuration of your webpack-dev-server and fill in the host.

you must be missing host

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