multiple query ERROR

[georgelynch1980]

https://stackoverflow.com/questions/26700924/query-based-on-multiple-where-clauses-in-firebase

.orderByChild("updateDate")
.endAt(1599795497079)
.orderByChild("shopKey")
.equalTo(widget.shopKey)
.once()

: [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: 'package:firebase_database/src/query.dart': Failed assertion: line 167 pos 12: '!_parameters.containsKey('orderBy')': is not true.