[ES6] SyntaxError: Cannot use import statement outside a module

$ nodemon --exec babel-node index.js
[nodemon] 3.1.0
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,cjs,json
[nodemon] starting `babel-node index.js`
(node:2936) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
C:\DWU\github\umc_test\index.js:2
import express from 'express'; // ES6
^^^^^^

SyntaxError: Cannot use import statement outside a module

 

 

이런 오류가 떳다.

 

 

위의 오류 중 

 

(node:2936) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.

 

라는 문구에 적혀있듯이

 

package.json에

  "type": "module",

 

를 추가하면 된다.