Class extends value undefined is not a constructor or null

[dragoscv]

When using import { DappUI, useGetLoginInfo } from '@elrondnetwork/dapp-core'; I get the following error in console:

Uncaught TypeError: Class extends value undefined is not a constructor or null
    at module.exports (keccak.js:5:1)
    at module.exports (index.js:6:1)
    at ./node_modules/keccak/js.js (js.js:1:1)
    at options.factory (react refresh:6:1)
    at __webpack_require__ (bootstrap:24:1)
    at fn (hot module replacement:62:1)
    at ./node_modules/@elrondnetwork/erdjs/out/signableMessage.js (signableMessage.js:12:1)
    at options.factory (react refresh:6:1)
    at __webpack_require__ (bootstrap:24:1)
    at fn (hot module replacement:62:1)

I can't manage to find a solution, all that I'm doing is importing the library

Edit: In a TypeScript project it works, but in a simple JS react-app doesn't work

[StanislavSava]

This error usually indicates a circular dependency. Can you check if you have any dependencies in your app?

[StanislavSava]

@dragoscv any progress on this?

[dragoscv]

@dragoscv any progress on this?

Just use their template. Or start a create-react-app with TypeScript. It doesn't work if your project is built in plain JavaScript. I've built my app using their template and migrated my other template into this

[StanislavSava]

I'm not sure I understand. Whos template? Why doesn't it work? You mean importing dapp-core into an app using plain js, no Typescript?

[CiprianDraghici]

It was fixed some time ago. Please use the latest version