在运行ng serve
后,我在终端窗口中遇到了一个异常:
编译 @angular/core : 将模块编译为 esm5
Error: Error on worker #1: TypeError: Cannot read property 'map' of undefined
并且以下是信息:
An unhandled exception occurred: NGCC failed.
请查看/tmp/ng-EAdxWj/angular-errors.log
获取更多详细信息。
angular-errors.log:
[error] Error: NGCC failed.
at NgccProcessor.process (/IdeaProjects/app/frontend/node_modules/@ngtools/webpack/src/ngcc_processor.js:76:19)
at /IdeaProjects/app/frontend/node_modules/@ngtools/webpack/src/angular_compiler_plugin.js:579:31
at SyncHook.eval [as call] (eval at create (/IdeaProjects/app/frontend/node_modules/tapable/lib/HookCodeFactory.js:19:10), <anonymous>:7:1)
at SyncHook.lazyCompileHook (/IdeaProjects/app/frontend/node_modules/tapable/lib/Hook.js:154:20)
at Object.webpack [as webpackFactory] (/IdeaProjects/app/frontend/node_modules/webpack/lib/webpack.js:55:30)
at createWebpack (/IdeaProjects/app/frontend/node_modules/@angular-devkit/build-webpack/src/webpack-dev-server/index.js:20:36)
at Object.runWebpackDevServer (/IdeaProjects/app/frontend/node_modules/@angular-devkit/build-webpack/src/webpack-dev-server/index.js:46:12)
at SwitchMapSubscriber.project (/IdeaProjects/app/frontend/node_modules/@angular-devkit/build-angular/src/dev-server/index.js:191:32)
at SwitchMapSubscriber._next (/IdeaProjects/app/frontend/node_modules/@angular-devkit/build-angular/node_modules/rxjs/internal/operators/switchMap.js:49:27)
at SwitchMapSubscriber.Subscriber.next (/IdeaProjects/app/frontend/node_modules/@angular-devkit/build-angular/node_modules/rxjs/internal/Subscriber.js:66:18)
at /IdeaProjects/app/frontend/node_modules/@angular-devkit/build-angular/node_modules/rxjs/internal/util/subscribeToPromise.js:7:24
at processTicksAndRejections (internal/process/task_queues.js:97:5)