错误：未捕获的 ReferenceError：未定义进程

Question

In my project, I'm using angular 6 with Spring-boot and what I want to know is how to resolve the error called

Uncaught ReferenceError: process is not defined at Object../node_modules/util/util.js (util.js:109)

In my util.js the error is highlighted as follows but I don't know to resolve this.

if (process.env.NODE_DEBUG) {
  var debugEnv = process.env.NODE_DEBUG;
  debugEnv = debugEnv.replace(/[|\\{}()[\]^$+?.]/g, '\\$&')
    .replace(/\*/g, '.*')
    .replace(/,/g, '$|^')
    .toUpperCase();
  debugEnvRegex = new RegExp('^' + debugEnv + '$', 'i');
}

Note: Recently I have installed material community components package using npm install material-community-components

There are similer questions like this but nothing helped me yet. This is my package.json file.

Answer 1

In my case i have added below code of block in polyfills.ts & issue resolve:

(window as any).process = {
  env: { DEBUG: undefined },
};