升级到angular

本文介绍了升级到angular-6.x会出现“Uncaught ReferenceError：global is not defined”。的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我将我的项目从angular-5.x升级到angular-6.x并且它开始给出以下错误，甚至创建虚拟全局变量也不起作用，如此处给出 Angular 6 Auth0 - 全局未定义

错误如下：

未捕获的ReferenceError：未定义全局 at Object ../ node_modules / has-binary2 / index.js （index.js：10） at __webpack_require__（bootstrap：81） at Object ../ node_modules / socket.io-parser / index.js（index.js：8） at __webpack_require__（bootstrap：81） at Object ../ node_modules / socket.io-client / lib / index.js（index.js：7） at __webpack_require__（bootstrap：81） at Object ../ src / app / app4pc / apiConnection / services / ApiConnectionServer.ts（auth.interceptor.ts：8） at __webpack_require__（bootstrap：81） at Object ../ src / app /app4pc/apiConnection/toServer.module.ts （ApiConnectionServer.ts:11） at __webpack_require__（bootstrap：81）

解决此问题后我收到以下错误：

未捕获的ReferenceError：进程未定义 at Object ../ node_modules / process-nextick -args / index.js（index.js：3） at __webpack_require__（bootstrap：81） at Object ../ node_modules / readable-stream / lib / _stream_readable.js（_stream_readable.js：26 ） at __webpack_require__（bootstrap：81） at Object ../ node_modules / readable-stream / readable-browser.js（readable-browser.js：1） at __webpack_require__（bootstrap： 81） at Object ../ node_modules / simple-peer / index.js（index.js：7） at __webpack_require__（bootstrap：81） at Object ../ src / app /util/services/call.services.ts（notification.service.ts:12） at __webpack_require__（bootstrap：81）

并一直持续。

解决方案

在起始页面中添加以下代码，例如index.html

var global = global ||窗口; var Buffer = Buffer || []; var process = process || { env：{DEBUG：undefined}， version：[] };

例如。如下：

<！doctype html> < html lang =en> < head> < meta charset =utf-8> < title>客户< / title> < base href =/> < meta name =viewportcontent =width = device-width，initial-scale = 1> < link rel =icontype =image / x-iconhref =favicon.ico> < script> var global = global ||窗口; var Buffer = Buffer || []; var process = process || { env：{DEBUG：undefined}， version：[] }; < / script> < / head> < body> < app-root> < div class =loader>< / div> < / app-root> < / body> < / html>

以上将适用于混合应用程序（在节点环境中）以及浏览器中

• var global = global || window; // for Uncaught ReferenceError：global is not defined

• var Buffer = Buffer || []; //未捕获的ReferenceError：未定义缓冲区

• var process = process || { env：{DEBUG：undefined} } //对于Uncaught ReferenceError：进程未定义

• var process = process || { env：{DEBUG：undefined}， version：[] }; // Uncaught TypeError：无法读取未定义的属性'slice'

I upgraded my project from angular-5.x to angular-6.x and it started giving the following error and even creation of dummy global variable does not work as given here Angular 6 Auth0 - global not defined

The error is as follows:

Uncaught ReferenceError: global is not defined at Object../node_modules/has-binary2/index.js (index.js:10) at __webpack_require__ (bootstrap:81) at Object../node_modules/socket.io-parser/index.js (index.js:8) at __webpack_require__ (bootstrap:81) at Object../node_modules/socket.io-client/lib/index.js (index.js:7) at __webpack_require__ (bootstrap:81) at Object../src/app/app4pc/apiConnection/services/ApiConnectionServer.ts (auth.interceptor.ts:8) at __webpack_require__ (bootstrap:81) at Object../src/app/app4pc/apiConnection/toServer.module.ts (ApiConnectionServer.ts:11) at __webpack_require__ (bootstrap:81)

after resolving this I get following error:

Uncaught ReferenceError: process is not defined at Object../node_modules/process-nextick-args/index.js (index.js:3) at __webpack_require__ (bootstrap:81) at Object../node_modules/readable-stream/lib/_stream_readable.js (_stream_readable.js:26) at __webpack_require__ (bootstrap:81) at Object../node_modules/readable-stream/readable-browser.js (readable-browser.js:1) at __webpack_require__ (bootstrap:81) at Object../node_modules/simple-peer/index.js (index.js:7) at __webpack_require__ (bootstrap:81) at Object../src/app/util/services/call.services.ts (notification.service.ts:12) at __webpack_require__ (bootstrap:81)

And continues on and on.

解决方案

Add following code in your starting page e.g. index.html

var global = global || window; var Buffer = Buffer || []; var process = process || { env: { DEBUG: undefined }, version: [] };

e.g. follows:

<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>Client</title> <base href="/"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="icon" type="image/x-icon" href="favicon.ico"> <script> var global = global || window; var Buffer = Buffer || []; var process = process || { env: { DEBUG: undefined }, version: [] }; </script> </head> <body> <app-root> <div class="loader"></div> </app-root> </body> </html>

Above will work on hybrid app(in node environment) as well as in browser

• var global = global || window; // for Uncaught ReferenceError: global is not defined

• var Buffer = Buffer || []; // for Uncaught ReferenceError: Buffer is not defined

• var process = process || { env: { DEBUG: undefined } } // for Uncaught ReferenceError: process is not defined

• var process = process || { env: { DEBUG: undefined }, version: [] }; // Uncaught TypeError: Cannot read property 'slice' of undefined