ERROR in ./src/taskpane/screens/main-screen/index.tsx 107:65 Module parse failed: Unexpected token (107:65) File was

Question

ERROR in ./src/taskpane/screens/main-screen/index.tsx 107:65 Module parse failed: Unexpected token (107:65) File was

processed with these loaders:
* ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
| var getTitleStyle = function getTitleStyle() {
| // const newDoc = doc.document.cloneNode(true) as Document;
> var titleFontSize = EditorModel.document.styles['TitleChar']?.runStyles.styles.find(function (s) {
| return s.tagName === 'w:sz';
| }); // console.log('titleFontSize', titleFontSize)
@ ./src/taskpane/router/index.tsx 20:0-52 46:15-25
@ ./src/taskpane/App.tsx
@ ./src/taskpane/index.tsx
@ multi ./node_modules/react-hot-loader/patch.js (webpack)-dev-server/client/index.js (webpack)/hot/only-dev-server.js ./src/taskpane/index.tsx