webpack -w 报了很多错？

[dpc761218914]

WARNING in configuration The 'mode' option has not been set, webpack will fallback to 'production' for this value. Set 'mode' option to 'development' or 'production' to enable defaults for each environment. You can also set it to 'none' to disable any default behavior. Learn more: https://webpack.js.org/concepts/mode/

ERROR in ./src/main.js Module build failed: Error: Cannot find module 'babel-core' at Function.Module._resolveFilename (module.js:547:15) at Function.Module._load (module.js:474:25) at Module.require (module.js:596:17) at require (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack-cli\node_modules\v8-compile-cache\v8-compile-cache.js:159:20) at Object. (E:\vueProject\node-vue-fabaocn-master\node_modules\babel-loader\lib\index.js:3:13) at Module._compile (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack-cli\node_modules\v8-compile-cache\v8-compile-cache.js:178:30) at Object.Module._extensions..js (module.js:663:10) at Module.load (module.js:565:32) at tryModuleLoad (module.js:505:12) at Function.Module._load (module.js:497:3) at Module.require (module.js:596:17) at require (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack-cli\node_modules\v8-compile-cache\v8-compile-cache.js:159:20) at loadLoader (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\node_modules\loader-runner\lib\loadLoader.js:13:17) at iteratePitchingLoaders (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\node_modules\loader-runner\lib\LoaderRunner.js:169:2) at runLoaders (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\node_modules\loader-runner\lib\LoaderRunner.js:362:2) at NormalModule.doBuild (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\NormalModule.js:235:3) at NormalModule.build (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\NormalModule.js:365:15) at Compilation.buildModule (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\Compilation.js:362:10) at moduleFactory.create (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\Compilation.js:711:12) at factory (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\NormalModuleFactory.js:366:6) at hooks.afterResolve.callAsync (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\NormalModuleFactory.js:143:13) at AsyncSeriesWaterfallHook.eval [as callAsync] (eval at create (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\node_modules\tapable\lib\HookCodeFactory.js:24:12), :6:1) at AsyncSeriesWaterfallHook.lazyCompileHook [as _callAsync] (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\node_modules\tapable\lib\Hook.js:35:21) at resolver (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\NormalModuleFactory.js:126:29) at process.nextTick (C:\Users\Administrator\AppData\Roaming\npm\node_modules\webpack\lib\NormalModuleFactory.js:304:9) at _combinedTickCallback (internal/process/next_tick.js:131:7) at process._tickCallback (internal/process/next_tick.js:180:9)

E:\vueProject\node-vue-fabaocn-master>webback -v 'webback' 不是内部或外部命令，也不是可运行的程序 或批处理文件。

E:\vueProject\node-vue-fabaocn-master>webpack -v 4.8.1

E:\vueProject\node-vue-fabaocn-master>

[wx1993]

webpack 安装了吗