我正在使用webpack 4并最终根据我的判断修复了cli部分，但现在当我运行webpack时，我在下面收到此错误。
这是堆栈跟踪：
TypeError: Class extends value undefined is not a constructor or null
at Object.<anonymous> (/home/tbaustin/Turbo/portfolio/node_modules/webpack/lib/MainTemplate.js:33:45)
at Module._compile (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:673:10)
at Module.load (module.js:575:32)
at tryModuleLoad (module.js:515:12)
at Function.Module._load (module.js:507:3)
at Module.require (module.js:606:17)
at require (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
at Object.<anonymous> (/home/tbaustin/Turbo/portfolio/node_modules/webpack/lib/Compilation.js:21:22)
at Module._compile (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:673:10)
at Module.load (module.js:575:32)
at tryModuleLoad (module.js:515:12)
at Function.Module._load (module.js:507:3)
at Module.require (module.js:606:17)
at require (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
at Object.<anonymous> (/home/tbaustin/Turbo/portfolio/node_modules/webpack/lib/Compiler.js:16:21)
at Module._compile (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:673:10)
at Module.load (module.js:575:32)
at tryModuleLoad (module.js:515:12)
at Function.Module._load (module.js:507:3)
at Module.require (module.js:606:17)
at require (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:159:20)
at Object.<anonymous> (/home/tbaustin/Turbo/portfolio/node_modules/webpack/lib/webpack.js:7:18)
at Module._compile (/home/tbaustin/Turbo/portfolio/node_modules/v8-compile-cache/v8-compile-cache.js:178:30)
at Object.Module._extensions..js (module.js:673:10)
at Module.load (module.js:575:32)
at tryModuleLoad (module.js:515:12)
at Function.Module._load (module.js:507:3)