How do I fix the 'Unexpected token ?' error in webpack-cli when bundling Firebase modules?

I followed the Firebase documentation for integrating Firebase with webpack (https://firebase.google.com/docs/web/module-bundling) and everything was going well until I reached the final step. When I run npm run build to generate the build folder, I encounter the following error:

BASHCopied
    Documents/NewTracker/node_modules/webpack-cli/node_modules/commander/lib/command.js:396
    enableOrNameAndArgs = enableOrNameAndArgs ?? 'help [command]';
                                               ^

SyntaxError: Unexpected token '?'
    at wrapSafe (internal/modules/cjs/loader.js:1053:16)
    at Module._compile (internal/modules/cjs/loader.js:1101:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
    at Module.load (internal/modules/cjs/loader.js:985:32)
    at Function.Module._load (internal/modules/cjs/loader.js:878:14)
    at Module.require (internal/modules/cjs/loader.js:1025:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.<anonymous> (/Documents/NewTracker/node_modules/webpack-cli/node_modules/commander/index.js:2:21)
    at Module._compile (internal/modules/cjs/loader.js:1137:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! newtracker@1.0.0 build: `webpack --mode=development`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the newtracker@1.0.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /.npm/_logs/2025-01-09T01_22_50_310Z-debug.log

I tried the steps twice and searched online for a solution without success. EDIT: I later discovered that updating my Node.js version resolved the issue, since the nullish coalescing operator (??) is not supported in older versions of Node.js.