Browser access error after webpack-dev-server running.

the project structure is shown in the following figure

webpack.config.js 

 


 can be accessed normally, checked a large amount of information, but do not know what went wrong, webpack-dev-server running HTTP server, life or death is a problem. Would you please help me to see what the problem is?
Node.js javascript webpack-dev-server webpack
Mar.12,2021

reporting that error is the wrong path. I see if you are missing. /
contentBase: path.join (_ _ dirname,'. / dist')

stupid, devServer.publicPath:'/ 'changed to the default value is normal. I have never understood the meaning of this attribute, which is the access path of URL.

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