Question

我试图利用RC.6中可用的新AOT编译，但遇到阻塞。我可以使用ngc =＆gt;成功创建一个包Rollup =＆gt; Babel，但每次我运行Rollup时都会收到多个警告：

The 'this' keyword is equivalent to {未定义{1}}

捆绑包成功完成。相同的代码库可以与JIT编译一起使用。 Angular 2应用程序引导速度很快，但每次我尝试导航到root以外的其他路由时都会出现此错误：

```

at the top level of an ES module, and has been rewritten

```

ngc编译时没有任何警告或错误。

我的rollup.config.js如下：

```

bundle.js:2781 EXCEPTION: Uncaught (in promise): EmptyError: no elements in    sequenceErrorHandler.handleError @ bundle.js:2781
bundle.js:2781 ORIGINAL STACKTRACE:ErrorHandler.handleError @ bundle.js:2781
bundle.js:2781 Error: Uncaught (in promise): EmptyError: no elements in sequence
    at resolvePromise (zone.js:558)
    at zone.js:535
    at ZoneDelegate.invoke (zone.js:332)
    at Object.onInvoke (bundle.js:3549)
    at ZoneDelegate.invoke (zone.js:331)
    at Zone.run (zone.js:225)
    at zone.js:591
    at ZoneDelegate.invokeTask (zone.js:365)
    at Object.onInvokeTask (bundle.js:3549)
    at ZoneDelegate.invokeTask (zone.js:364)ErrorHandler.handleError @ bundle.js:2781
zone.js:484 Unhandled Promise rejection: no elements in sequence ; Zone: angular ; Task: Promise.then ; Value: Error: no elements in sequence
    at new EmptyError (bundle.js:7019)
    at FirstSubscriber._complete (bundle.js:7071)
    at FirstSubscriber.complete (bundle.js:3410)
    at MergeAllSubscriber._complete (bundle.js:6854)
    at MergeAllSubscriber.complete (bundle.js:3410)
    at MapSubscriber._complete (bundle.js:3410)
    at MapSubscriber.complete (bundle.js:3410)
    at EmptyObservable._subscribe (bundle.js:6598)
    at EmptyObservable.subscribe (bundle.js:3441)
    at Observable.subscribe (bundle.js:3441) EmptyError: no elements in sequence
    at new EmptyError (http://localhost:4200/bundle.js:7019:243)
    at FirstSubscriber._complete (http://localhost:4200/bundle.js:7071:1680)
    at FirstSubscriber.complete (http://localhost:4200/bundle.js:3410:99)
    at MergeAllSubscriber._complete (http://localhost:4200/bundle.js:6854:783)
    at MergeAllSubscriber.complete (http://localhost:4200/bundle.js:3410:99)
    at MapSubscriber._complete (http://localhost:4200/bundle.js:3410:547)
    at MapSubscriber.complete (http://localhost:4200/bundle.js:3410:99)
    at EmptyObservable._subscribe (http://localhost:4200/bundle.js:6598:234)
    at EmptyObservable.subscribe (http://localhost:4200/bundle.js:3441:223)
    at Observable.subscribe (http://localhost:4200/bundle.js:3441:187)consoleError @ zone.js:484
zone.js:486 Error: Uncaught (in promise): EmptyError: no elements in sequence
    at resolvePromise (zone.js:558)
    at zone.js:535
    at ZoneDelegate.invoke (zone.js:332)
    at Object.onInvoke (bundle.js:3549)
    at ZoneDelegate.invoke (zone.js:331)
    at Zone.run (zone.js:225)
    at zone.js:591
    at ZoneDelegate.invokeTask (zone.js:365)
    at Object.onInvokeTask (bundle.js:3549)
    at ZoneDelegate.invokeTask (zone.js:364)

```

当使用Babel将ES2015捆绑包转发到ES5时，我收到以下警告：

// rollup.config.js import alias from 'rollup-plugin-alias'; import resolve from 'rollup-plugin-node-resolve'; export default { entry: 'main.js', format: 'iife', dest: 'dist/bundle.es2015.js', sourceMap: false, plugins: [ alias({ rxjs: __dirname + '/node_modules/rxjs-es' }), resolve({ module: true }) ] }

可能是什么问题？

此致史蒂夫

Answer 1

我无法让Babel 6.5.2正确地传输捆绑包。根据Rob Wormald的建议，我尝试使用Closure Compiler从Rollup转换ES2015捆绑输出，并且它有效。看起来只有Java版本稳定，但是当JS版本顺利运行时，我计划将它与我的rollup.config.js集成。现在，我通过npm脚本中的一系列异步回调来处理构建。

https://github.com/steveblue/angular2-rollup

https://developers.google.com/closure/compiler

为什么ngc + Rollup捆绑Angular 2 RC.6路由失败？

1 个答案: