diaodiallo

After Migrating to null safety have this issue type '() => Null' is not a subtype of type '(() => Map<String, dynamic>)?' of 'orElse'

2

Returning null around here `var existingItem = dataSource!.singleWhere(((itm) => itm[valueField] == item), orElse: () => null);` at line 72 is causing this. I think should replace null by [] but...