设置Babel后出现错误。我知道我的babel loader版本是8，而babel-core是6，这可能是问题之一。我试图下载模块'@ babel / core'或什至是babel loader的版本7，但仍然给我错误..如何解决该问题？？？
这些都是我在运行npm run dev时遇到的所有错误
ERROR in ./src/js/index.js
Module build failed (from ./node_modules/babel-loader/lib/index.js):
Error: Cannot find module '@babel/core'
babel-loader@8 requires Babel 7.x (the package '@babel/core'). If you'd like to use Babel 6.x ('babel-core'), you should install 'babel-loader@7'.
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
at Function.Module._load (internal/modules/cjs/loader.js:507:25)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
at Object.<anonymous> (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/babel-loader/lib/index.js:10:11)
at Module._compile (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/v8-compile-cache/v8-compile-cache.js:178:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
at Module.load (internal/modules/cjs/loader.js:599:32)
at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
at Function.Module._load (internal/modules/cjs/loader.js:530:3)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
at loadLoader (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/loader-runner/lib/loadLoader.js:18:17)
at iteratePitchingLoaders (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/loader-runner/lib/LoaderRunner.js:169:2)
at runLoaders (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/loader-runner/lib/LoaderRunner.js:365:2)
at NormalModule.doBuild (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/NormalModule.js:280:3)
at NormalModule.build (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/NormalModule.js:427:15)
at Compilation.buildModule (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/Compilation.js:635:10)
at factory.create (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/Compilation.js:884:14)
at factory (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/NormalModuleFactory.js:405:6)
at hooks.afterResolve.callAsync (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/NormalModuleFactory.js:155:13)
at AsyncSeriesWaterfallHook.eval [as callAsync] (eval at create (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/tapable/lib/HookCodeFactory.js:32:10), <anonymous>:6:1)
at resolver (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/NormalModuleFactory.js:138:29)
at process.nextTick (/Users/sandrahelicka/Desktop/RecipeFinder/node_modules/webpack/lib/NormalModuleFactory.js:342:9)
at process._tickCallback (internal/process/next_tick.js:61:11)
@ multi babel-polyfill ./src/js/index.js main[1]
Child html-webpack-plugin for "index.html":
1 asset
Entrypoint undefined = index.html
[./node_modules/html-webpack-plugin/lib/loader.js!./src/index.html] 18.2 KiB {0} [built]
[./node_modules/webpack/buildin/global.js] (webpack)/buildin/global.js 472 bytes {0} [built]
[./node_modules/webpack/buildin/module.js] (webpack)/buildin/module.js 497 bytes {0} [built]
+ 1 hidden module
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! recipefinder@1.0.0 dev: `webpack --mode development`
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the recipefinder@1.0.0 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.