Module not found: Can't resolve 'evenemitter3'

[Ryong-E]

wait compiling...
- error ./node_modules/@web3-react/core/dist/mocks.js:4:0
Module not found: Can't resolve 'eventemitter3'

I get an error when running yarn dev. I'm wondering what the reason might be. If I install eventemitter3 in my pakage.json, it works fine. Please let me know the answer

[Ryong-E]

If you run npm run dev with this state, it should work fine. Could it be a problem with yarn?

[0xUniko]

the same issue using pnpm

[CopsLikeDonuts]

Same. Downgraded packages versions to 8.0.[version] and everything runs well

[siawyoung]

Installing eventemitter3 seems to work 🤷