[ERROR] Main5.hx:1: lines 1-6

 1 | class Main {
 - |   [...]
 6 | }
   |
   | This class has uninitialized final vars, which requires a constructor

[ERROR] Main5.hx:2: characters 8-9

 2 |  final v:Int;
   |        ^
   | Example of an uninitialized final var

