constraint flutter version

hoc081098 · hoc081098 · commit ffc186727efb · 2021-06-09T14:25:31.000+07:00
diff --git a/pubspec.lock b/pubspec.lock
@@ -690,4 +690,4 @@ packages:
     version: "3.1.0"
 sdks:
   dart: ">=2.13.0 <3.0.0"
-  flutter: ">=2.0.0"
+  flutter: ">=2.2.0"
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -6,6 +6,7 @@ version: 3.0.0+3
 
 environment:
   sdk: ">=2.13.0 <3.0.0"
+  flutter: ">=2.2.0"
 
 dependencies:
   flutter:
