javascript - src/polyfills.ts(73,1) : error TS2304: Cannot find name 'global' . [ng] src/polyfills.ts(73,17) 中出现错误时出现 web-pack 错误:

Question

我将 Ionic 3 项目升级为 Ionic 4 项目。使用“ionic serve”启动服务器时，我总是会收到上述错误。

我试过很多东西，例如:

1. 在 polyfills.ts 文件中，

   (window as any).process = {
     env: { DEBUG: undefined },
    };
   (window as any).global = window;
   (window as any).process = window;
   (window as any).process.browser = true;
   (window as any).process.version = '';
   (window as any).process.versions = {node: false};
   global.Buffer = global.Buffer || require('buffer').Buffer;
   

2. 在头部添加script标签，定义全局等

我的 tsconfig.json 文件

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "module": "es2015",
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "importHelpers": true,
    "target": "es5",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2018",
      "dom"
    ]
  }
}

均无效。

如何解决错误？

Answer 1

将此添加到您的 index.html

    <script>
        if (global === undefined) {
            var global = window;
        }
    </script>