问题描述
我正在使用 Angular CLI 构建一个 Angular 4 应用程序.在部署到 prod 之前,我想做 aot 和 minification.所以我执行了以下命令
I am using Angular CLI to build an Angular 4 app. Before deployment to prod, I would like to do aot and minification. So I executed the following command
ng build --environment=prod --prod --base-href /myapp/
这给了我以下错误
ERROR in Error encountered resolving symbol values statically. Calling function 'ControlValueAccessorProviderFactory', function calls are not supported. Consi
der replacing the function or lambda with a reference to an exported function, resolving symbol DatePicker in D:/myapp/node_modules/angular-i
o-datepicker/src/datepicker/datePicker.d.ts, resolving symbol DatePicker in D:/myapp/node_modules/angular-io-datepicker/src/datepicker/datePi
cker.d.ts
ERROR in ./src/main.ts
Module not found: Error: Can't resolve './$$_gendir/app/app.module.ngfactory' in 'D:\myapp\src'
@ ./src/main.ts 4:0-74
@ multi ./src/main.ts
Datepicker 模块,它抱怨它是一个外部模块 (https://www.npmjs.com/package/angular-io-datepicker).
Datepicker module that it is complaining about it an external module (https://www.npmjs.com/package/angular-io-datepicker).
有人可以建议什么可能是错误的,我该如何解决?
Can someone please suggest what could potentially be wrong and how could I resolve it?
推荐答案
根据这里:
https://github.com/qdouble/angular-webpack2-starter#aot--donts
这里:
https://github.com/rangle/angular-2-aot-sandbox#func-in-providers-top
Angular 无法静态分析的一种类型是在 providers
中调用的函数.
One of the types of things that Angular cannot statically analyze are functions being called in providers
.
看看你拥有的图书馆:
https://github.com/rd-dev-ukraine/angular-io-datepicker/blob/master/src/datepicker/datePicker.d.ts
Component
providers
providers: [ControlValueAccessorProviderFactory(DatePicker)
ControlValueAccessorProviderFactory
来自这里:
https://github.com/rd-dev-ukraine/angular-io-datepicker/blob/master/src/datepicker/common.ts
在本例中,我们看到我们正在导出一个直接在 providers
数组中调用的函数.
In this case we see that we're exporting a function that is being called directly in the providers
array.
所以我认为这导致了静态分析的问题,导致您的构建失败.我认为库必须改变他们处理程序的方式才能编译.
So I think that is causing the issues with static analysis, causing your build to fail. I think the library would have to change how they handle that for your program to compile.
这篇关于带有外部模块的 Angular 4 中的 Aot 和缩小失败的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!