If I understand correctly - this code is responsible for redirecting gRPC requests that point to a package from gRPC as a path. If so, you should also add these packages here, since they are present in version 0.18.0-beta, for example. Otherwise it is not possible to fully work with LND gRPC API from BTCPay.
If I understand correctly - this code is responsible for redirecting gRPC requests that point to a package from gRPC as a path. If so, you should also add these packages here, since they are present in version 0.18.0-beta, for example. Otherwise it is not possible to fully work with LND gRPC API from BTCPay.