Struggling with the transformation: Failed to find import "child_process" in TypeScript

I encountered an issue when trying to run my simple TypeScript project. I am receiving the following error: 'Error while transforming Could not resolve import "child_process".' You can see the error in this screenshot. This error occurs in my tsconfig.json file.

{
  "compilerOptions": {
    "target": "es2017",
    "module": "es2022",
    "moduleResolution": "Node16",
    "lib": ["esnext.array", "esnext", "es2017", "dom", "WebWorker"],
    "strict": true,
    "noUnusedLocals": true,
    "esModuleInterop": true,
    "noUnusedParameters": true,
    "noImplicitReturns": false,
    "noFallthroughCasesInSwitch": true,
    "forceConsistentCasingInFileNames": true,
    "noImplicitAny": false,
    "noImplicitThis": true,
    "outDir": "./dist/",
    "skipLibCheck": true,
    "experimentalDecorators": true,
    "typeRoots": [
      "node_modules/@types"
    ],
  },
  "include": ["src/**/*"]
}

The issue is also present in test.ts:

import { visualDiff } from '@web/test-runner-visual-regression';
import { setViewport } from '@web/test-runner-commands';
import * as child1 from 'child_process';

// startup code, runs before the tests run per browser
before(async function () {

  var foo: child1.ChildProcess = child1.exec(stubService.executable);
  console.log(typeof foo.on);
});

Answer №1

It seems like this is a test designed for code execution within a web browser setting. However, it's important to note that while child_process is available in node.js.

If your code is intended to run in a browser environment, node.js is not accessible there. This means that utilizing child_process in code meant for browsers is not possible.

You'll need to figure out an alternative approach to achieve your goal in a browser-friendly manner.

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