Index: utils/pub/version_solver.dart |
diff --git a/utils/pub/version_solver.dart b/utils/pub/version_solver.dart |
index 18b2be80fb49af09cfe828a7638fbacb46ff6661..8661e2d5b0c29c1b610ae358291f5618f8c3df64 100644 |
--- a/utils/pub/version_solver.dart |
+++ b/utils/pub/version_solver.dart |
@@ -36,6 +36,7 @@ |
library version_solver; |
import 'dart:async'; |
+import 'dart:collection' show Queue; |
import 'dart:json' as json; |
import 'dart:math'; |
import 'lock_file.dart'; |