Error when using Payjoin Flutter

[BitcoinZavior]

error: PayjoinException( failed to initialize payjoin ) and st: #0 PConfig.initializeApp (package:payjoin_flutter/src/config.dart:11:7)
I/flutter (12273): <asynchronous suspension>
I/flutter (12273): #1 Uri.fromStr (package:payjoin_flutter/uri.dart:87:7)
I/flutter (12273): <asynchronous suspension>
I/flutter (12273): #2 BitcoinPayjoin.stringToPjUri (package:cw_bitcoin/bitcoin_payjoin.dart:343:14)
I/flutter (12273): <asynchronous suspension>

[DanGould]

May you share the nature of this bug and steps to reproduce? @J0J0XMR

[J0J0XMR]

@DanGould Building payjoin-flutter from scratch throws the above error, it only works without this change if payjoin-flutter lib is already built in project and upgrading.