Optional chaining in the library source errors on build due to in appropriate loader?

[rushill2]

Hey all,

I have been receiving this since I tried to include spring in my project (using react-sheet-slide)

You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders

| }
| function detachRefs(ctrl, ref) {
>   ctrl.ref?.delete(ctrl);
|   ref?.delete(ctrl);
| }

My react, babel and node versions are up to date. I have included the plugin for optional chaining in babel and am now attempting to upgrade webpack to v5 to see if that causes anything to change. Has anyone else had to deal with this as well?