[error note] React.jsx: type is invalid -- expected a string (for built-in components) or a class/function

react-jsx-dev-runtime.development.js:87 Warning: React.jsx: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

Toast Ui Viewer을 import하던 중 발생한 오류
컴포넌트의 참조가 잘못된 경우 발생하는 오류다.

//error!
import { Viewer } from '@toast-ui/editor/dist/toastui-editor-viewer';


//고친 부분
import Viewer from '@toast-ui/editor/dist/toastui-editor-viewer';