The error is gone now, after I explicitly import Data using import {Blockfrost, Data, Lucid} from 'lucid-cardano'; thank you @PREEB

Hi @PREEB, now I change it to beneficiary: L.Data.Bytes() and deadline: L.Integer(), now the error is lucid_cardano__WEBPACK_IMPORTED_MODULE_3__.Integer is not a function and error export 'Integer' (imported as 'L') was not found in 'lucid-cardano, I use "lucid-cardano": "^0.9.1"

Hi @PREEB, it's still not working, I use L.Data.Integer, now the error is Error: Could not serialize the data: Unsupported type, I also use L.Data.bigint but got another error TypeError: Cannot read properties of undefined (reading 'Symbol(TypeBox.Modifier)')