🔺 Cannot run app after adding Universe

[thorvalld]

App fails to run after adding Universe package with Flutter 3.x.x & Universe 1.1.3-nullsafety
BUILD ERR:
../../../../.pub-cache/hosted/pub.dev/universe-1.1.3-nullsafety/lib/src/layer/overlay/image.dart:12:9: Error: Type 'File' not found.

[polaksta]

I had the same problem — I had to add
'import 'dart:io';
at the beginning of the file