error: Non-nullable instance field 'textResult' must be initialized

Question

error: Non-nullable instance field 'textResult' must be initialized. (not_initialized_non_nullable_instance_field at [aplikasi_scan_plat_nomor] lib\screen\home.dart:18)

class _HomeState extends State { String textResult;

Answer 1

With the sound null safety, our definitions should care about null cases. So you can use String textResult = ""; or String? textResult; for your code.

Answer 2

You can add late keyword before the variable.