devSever拼錯了，是devServer

Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.

?- configuration has an unknown property 'devSever'. These properties are valid:

? ?object { mode?, amd?, bail?, cache?, context?, dependencies?, devServer?, devtool?, entry?, externals?, loader?, module?, name?, node?, output?, optimization?, parallelism?, performance?, plugins?, profile?, recordsInputPath?, recordsOutputPath?, recordsPath?, resolve?, resolveLoader?, serve?, stats?, target?, watch?, watchOptions? }

? ?For typos: please correct them.

? ?For loader options: webpack >= v2.0.0 no longer allows custom properties in configuration.

? ? ?Loaders should be updated to allow passing options via loader options in module.rules.

? ? ?Until loaders are updated one can use the LoaderOptionsPlugin to pass these options to the loader:

? ? ?plugins: [

? ? ? ?new webpack.LoaderOptionsPlugin({

? ? ? ? ?// test: /\.xxx$/, // may apply this only for some modules

? ? ? ? ?options: {

? ? ? ? ? ?devSever: …

? ? ? ? ?}

? ? ? ?})

? ? ?]

看不清