Angular CLI 给了我“TypeError: callbacks[i] is not a function"；当我“服务"时 [英] Angular CLI gives me "TypeError: callbacks[i] is not a function" when I "ng serve"

问题描述

我只是重新安装了 Angular CLI 以进行试用，但我不知道是什么导致了命令行上出现以下错误:

I literally just made a fresh installation of the Angular CLI in order to try it out and I don't have a clue on what's causing the following error on the command line:

    PC:cobros Fran$ ng serve
** NG Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **
 95% emitting/Users/Fran/Documents/Workspace/Repos/cobros/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:40
        callbacks[i](err, result);
                    ^

TypeError: callbacks[i] is not a function
    at Storage.finished (/Users/Fran/Documents/Workspace/Repos/cobros/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:40:15)
    at /Users/Fran/Documents/Workspace/Repos/cobros/node_modules/enhanced-resolve/lib/CachedInputFileSystem.js:77:9
    at /Users/Fran/Documents/Workspace/Repos/cobros/node_modules/graceful-fs/polyfills.js:287:18
    at FSReqWrap.oncomplete (fs.js:153:5)

这是我在尝试ng -v"时返回的信息(以防万一它真的有用):

This is the information I get returned when I try "ng -v" (In case it's useful at all):

Angular CLI: 1.6.8
Node: 8.9.0
OS: darwin x64
Angular: 5.2.4
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

@angular/cli: 1.6.8
@angular-devkit/build-optimizer: 0.0.42
@angular-devkit/core: 0.0.29
@angular-devkit/schematics: 0.0.52
@ngtools/json-schema: 1.1.0
@ngtools/webpack: 1.9.8
@schematics/angular: 0.1.17
typescript: 2.5.3
webpack: 3.10.0

'enhanced-resolve' 模块还能做什么?我是否安装了 angular 错误?我按照 https://github.com/angular/angular-cli 的说明进行操作并确保我满足了先决条件.

What does the 'enhanced-resolve' module even do? Did I install angular wrong? I followed the instructions from https://github.com/angular/angular-cli and made sure I fulfilled the prerequisites.

推荐答案

问题现已修复，因此无需再使用此解决方法.

The issue is now fixed, so there is no need to use this workaround anymore.

解决方案(解决方法)在此处

Solution (workaround) found here

将 "copy-webpack-plugin": "4.3.0" 添加到 package.json

Add "copy-webpack-plugin": "4.3.0" to your package.json

谢谢@neshkatrapati

Thanks @neshkatrapati

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