TypeError: Cannot read property 'emit' of undefined
at OfflinePackagePlugin.apply (/Users/vue-acts/2020/06/cloundTravel/node_modules/offline-package-webpack-plugin/lib/plugin.js:41:20)
at Compiler.apply (/Users/vue-acts/2020/06/cloundTravel/node_modules/tapable/lib/Tapable.js:375:16)
at webpack (/Users/vue-acts/2020/06/cloundTravel/node_modules/webpack/lib/webpack.js:33:19)
at Object.
at Module._compile (internal/modules/cjs/loader.js:689:30)
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 Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3)