node.js - 不再能够在 Angular 4.2.3 中导入 BrowserAnimationsModule

Question

我刚刚升级到 Angular 4.2.3，现在我的 AppModule 文件中的以下行出现错误:

import { BrowserAnimationsModule } from "@angular/platform-browser/animations";

错误是:

./~/@angular/platform-browser/@angular/platform-browser/animations.es5.js
47:2-18 
"export 'AnimationBuilder' was not found in '@angular/animations'
./~/@angular/platform-browser/@angular/platform-browser/animations.es5.js
78:2-18 
"export 'AnimationFactory' was not found in '@angular/animations'
./~/@angular/platform-browser/@angular/platform-browser/animations.es5.js
612:15-31 
"export 'AnimationBuilder' was not found in '@angular/animations'
./~/@angular/animations/@angular/animations/browser.es5.js
39:35-45 
"export 'ɵPRE_STYLE' was not found in '@angular/animations'
./~/@angular/animations/@angular/animations/browser.es5.js
2275:29-39 
"export 'ɵPRE_STYLE' was not found in '@angular/animations'
./~/@angular/animations/@angular/animations/browser.es5.js
3808:97-107 
"export 'ɵPRE_STYLE' was not found in '@angular/animations'

这是在 Angular 4.1.2 中工作的，如果我不导入这个模块一切正常，我就是看不到动画。

这是 4.2.3 中的错误，还是某处有重大更改？

谢谢

Answer 1

您在使用 Angular CLI 吗？升级后我遇到过这样的问题，但它们总是通过在我的项目和/或全局包中修改和重新创建 node_modules 目录结构来解决。

全局包:

npm uninstall -g @angular/cli

npm cache clean

npm install -g @angular/cli@latest

本地项目包

rm -rf node_modules dist (use rmdir /S/Q node_modules dist in Windows Command >Prompt; use rm -r -fo node_modules,dist in Windows PowerShell)

npm install --save-dev @angular/cli@latest

npm install

不知道为什么会这样，但上面的过程似乎为我解决了这个问题。