example code is also not working and showing error, flash light does not on or off

[kamleshwebtech]

Launching lib\main.dart on Redmi Note 4 in debug mode...
 lib\main.dart
Note: D:\john\flutter\.pub-cache\hosted\pub.dartlang.org\lamp-0.0.6\android\src\main\java\plugins\flutter\lamp\lamp\LampPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
√ Built build\app\outputs\flutter-apk\app-debug.apk.
Connecting to VM Service at ws://127.0.0.1:58600/IamL1H5pEQs=/ws
I/flutter (27398): Device has flash ? true
V/BoostFramework(27398): BoostFramework() : mPerf = com.qualcomm.qti.Performance@cc3969