Cannot write private member to an object whose class did not declare it at azure pipeline

I'm trying to run playwright axe test cases on azure pipeline, but getting error at global-teardown.js file in azure pipeline, but this run perfectly in local. Below are the respective files. I m trying to publish a HTML report in azure pipeline after running test cases.

//globalTeardown.js

const exec = require('child_process').execSync;

async function globalSetup() {
    > 5 |   await exec(
        |         ^
      6 |     "npx xunit-viewer -r  playwrightResults.xml -o playwrightResults.html "
      7 |   );
      8 | }

//playwright.config.js
const config = {
  globalSetup: "src/utils/globalSetup.js",
  testDir: "./a11ytests",
  globalTeardown: "src/utils/globalTeardown.js",
  use: {
    screenshot: "only-on-failure"
  },
  reporter: [["junit", { outputFile: "playwrightResults.xml" }]],
.
.
.
.}

//a11y.spec.js
const axeOption = {
  axeOptions: {
    runOnly: {
      type: "tag",
      values: ["best-practice"]
    }
  },
  detailedReport: true,
  detailedReportOptions: { html: true }
};

let browser;
let page;

test.describe("Playwright web page accessibility test for landing page", () => {
  test.beforeEach(async () => {
    browser = await chromium.launch();
    page = await browser.newPage();
    await page.goto(ENV.BASE_URL);
    await injectAxe(page);
  });

  test("simple accessibility run for landing page", async () => {
    await checkA11y(page, null, axeOption);
  });
});