koa_1.default is not a constructor1

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  [Typescript] TypeError: koa_1.default is not a constructor 이슈 - app.ts import Koa from 'koa'; const app = new Koa(); app.use(req => { req.body = 'hello world';}); export default app; - server.ts import app from './app'; app.listen(4000, () => { console.log("Server is Listening to port 4000");}); - Error # ts-node-dev --respawn ./src/server.ts TypeError: koa_1.default is not a constructor 해결 - app.ts import * as Koa from 'koa'; Development/Typescript 2023. 12. 23.