未捕获的类型错误：无法读取未定义的属性“CollaborativeTextEditor”

如何解决未捕获的类型错误：无法读取未定义的属性“CollaborativeTextEditor”

我正在进行协作编辑，并将 html-text-collab-ext 用于 html 文本区域。下面是 updateContent.tsx 文件

function updateCursorText(range: any[],uid: any,text: string) {
    if (range) {
      doc.submitPresence({
        path: [text],type: 'text0',subpresence: {
          user: uid,c: 0,s: [range]
        }
      });
    }
  }
useEffect(() => {
    if (subjectRef.current) {
      const subjectElem = subjectRef.current.getInputElement();
      doc.subscribe(() => {
        subjectElem.addEventListener('focus',() => {
          console.log("focus")
          updateCursorText(
            [subjectElem.selectionStart,subjectElem.selectionStart],uid,'subject'
          );
        });
        const textEditor = new HtmlTextCollabExt.CollaborativeTextEditor({
          control: subjectElem,onSelectionChanged: (selection: { anchor: any; target: any; }) =>
            updateCursorText([selection.anchor,selection.target],'subject')
        });
        const selectionManager = textEditor.selectionManager();

});

我收到的错误是未捕获的类型错误：无法读取未定义的属性“CollaborativeTextEditor”