PS C:\demo_webpack> npx webpack-dev-servernpx: installed 363 in 36.802sThe CLI moved into a separate package: webpack-cliPlease install 'webpack-cli' in addition to webpack itself to use the CLI-> When using npm: npm i -D webpack-cli-> When using yarn: yarn add -D webpack-cliCannot find module 'webpack-cli/bin/config-yargs'
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手掌心
TA貢獻(xiàn)1942條經(jīng)驗(yàn) 獲得超3個(gè)贊
你是用了webpack4吧
現(xiàn)在使用webpack要同時(shí)安裝webpack-cli這個(gè)包，才可以調(diào)用webpack和webpack-dev-server這些命令
npm install webpack webpack-dev-server webpack-cli --save-dev
接下來(lái)就可以直接
webpack-dev-server
慕妹3242003
TA貢獻(xiàn)1824條經(jīng)驗(yàn) 獲得超6個(gè)贊
看樣子你在使用ES2015語(yǔ)法寫(xiě)react，那你的loader配置不怎么正確，應(yīng)該是：
{ test: /\.js$/, exclude:/node_modules/, loader: 'babel-loader'},
{ test: /\.jsx$/, exclude: /node_modules/, loader: 'babel?presets[]=react&presets[]=es2015' }
注意需要安裝：npm install --save-dev babel-preset-react babel-preset-es2015
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