延迟加载的Angular2 AOT无法解析[延迟模块的路径] .ngfactory.ts [英] Angular2 AOT with Lazy loading Can't resolve [path to lazy module].ngfactory.ts

问题描述

我正在尝试将已经与延迟加载模块一起使用的App转换为AOT.我正在使用@ ngtools/webpack工具包来编译AOT代码，但是我遇到了一个错误，即Angular似乎找不到懒加载模块的代码.

I am trying to convert an App that was already working with Lazy loaded modules into AOT. I am using the @ngtools/webpack toolkit to compile the AOT code, however I am getting into an error that Angular cant find the Lazy loaded module's code as it seems.

ERROR in ./src/ngfactory async
Module not found: Error: Can't resolve '/Library/WebServer/Documents/envato-teams/src/ngfactory/src/app/components/container/projects.ngfactory.ts' in '/Library/WebServer/Documents/envato-teams/src/ngfactory'
@ ./src/ngfactory async
@ ./~/@angular/core/src/linker/system_js_ng_module_factory_loader.js
@ ./src/ngfactory/src/app/app.module.ngfactory.ts
@ ./src/main.aot.ts
@ multi main

在我的应用程序路由定义中值得一提的是，该项目的模块延迟加载:

Worth mention in my app routes definition this project's module is loaded lazily :

{
  path: 'projects', loadChildren: './components/container/projects#ProjectModule'
},

这是我的设置的样子:

tsconfig:

...
"angularCompilerOptions": {
  "genDir": "./src/ngfactory",
  "entryModule": "src/app/app.module#AppModule"
}
...

Webpack:

new ngtools.AotPlugin({
    tsConfigPath: './tsconfig.aot.json',
}),

Main.aot.ts

Main.aot.ts

/*
* Providers provided by Angular
*/
import { platformBrowser } from '@angular/platform-browser';
import { AppModuleNgFactory } from './ngfactory/src/app/app.module.ngfactory';

import { Servicesconfig } from './app/services/index';

platformBrowser().bootstrapModuleFactory(AppModuleNgFactory);

在webpack中，我通过@ ngtools/Webpack来编译ts文件:

In webpack I am compiling ts files with @ngtools/Webpack by doing :

// Support for .ts files.
{
  test: /\.ts$/,
  loaders: ['@ngtools/webpack'],
  exclude: [/\.(spec|e2e)\.ts$/]
},

谢谢您的帮助！

推荐答案

我在为AOT和延迟加载的模块而苦苦挣扎.

I was struggling myself with AOT and Lazy loaded modules.

选择一个或另一个并不是产品构建的选择.

即使我真的确实需要这些功能，我也无法获得它们，不得不放弃.直到今天！

Even tho I really needed those features together, I was not able to get them and had to give up. Until today !

angular-cli两天前发布了一个版本: 1.0.0-beta.21 其中支持AOT和延迟加载！

angular-cli made a release two days ago : 1.0.0-beta.21 which supports AOT and Lazy loading !

在angular-cli项目中:

In your angular-cli project :

npm cache clean  
npm install --save-dev angular-cli@latest  
ng init

享受！

PS:非常感谢angular-cli团队在这里做出了出色的工作……！

PS : Big thanks to angular-cli team which made an awesome work here ... !

我做了一些基准测试:

EDIT :
I did some benchmarks :

+-----------------------+-------------+--------------+-----------+-------------+
|                       | Main bundle |   Chunk 0    | Scripting | First paint |
+-----------------------+-------------+--------------+-----------+-------------+
| ng serve              | 4.5 MB      | Not splitted | 6075 ms   | 5500+ ms    |
| ng serve --prod       | 334 KB      | Not splitted | 5587 ms   | 4750+ ms    |
| ng serve --aot        | 3.3 MB      | 326 KB       | 4011 ms   | 4400+ ms    |
| ng serve --prod --aot | 243 KB      | 18.1 Kb      | 3860 ms   | 4250+ ms    |
+-----------------------+-------------+--------------+-----------+-------------+

(结果不是很好，因为我打开了很多东西，有3个显示器，笔记本电脑也很疼^ __ ^).

(results aren't super good because I have a lot of things opened and 3 monitors and my laptop is in pain ^__^).

这就是我们可以记住的:
---prod --aot版本大小比--prod版本
小 27％ -编写脚本时，--prod --aot版本比--prod版本快 31％ -AOT很酷！
-可能存在一个不带aot标志的错误，因为除非我错过了什么，否则我找不到我期望的延迟加载块，并且在主程序包中找到了假定的延迟加载代码.我在Github上打开了问题.

Here's what we can remember from that :
- The --prod --aot build size is 27% smaller than --prod build
- The --prod --aot build is 31% faster when scripting than --prod build
- AOT is cool !
- There's probably a bug without aot flag because unless I missed something, I couldn't find the lazy loaded chunk I expected and I found the supposed lazy loaded code into the main bundle. I opened an issue on Github.

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