Unsupported value: 'kotlin.Unit' of type 'class kotlin.Unit'

[LennartMart]

Hi there!

I get an error when launching my Flutter app (app still works). This error is also appears in the example app.

Call stack:

E/MethodChannel#pin_lock(10524): java.lang.IllegalArgumentException: Unsupported value: 'kotlin.Unit' of type 'class kotlin.Unit' E/MethodChannel#pin_lock(10524): at io.flutter.plugin.common.StandardMessageCodec.writeValue(StandardMessageCodec.java:297) E/MethodChannel#pin_lock(10524): at io.flutter.plugin.common.StandardMethodCodec.encodeSuccessEnvelope(StandardMethodCodec.java:63) E/MethodChannel#pin_lock(10524): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler$1.success(MethodChannel.java:267) E/MethodChannel#pin_lock(10524): at nl.dutchcodingcompany.pin_lock.PinLockPlugin.onMethodCall(PinLockPlugin.kt:35) E/MethodChannel#pin_lock(10524): at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:262) E/MethodChannel#pin_lock(10524): at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295) E/MethodChannel#pin_lock(10524): at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$DartMessenger(DartMessenger.java:319) E/MethodChannel#pin_lock(10524): at io.flutter.embedding.engine.dart.-$$Lambda$DartMessenger$TsixYUB5E6FpKhMtCSQVHKE89gQ.run(Unknown Source:12) E/MethodChannel#pin_lock(10524): at android.os.Handler.handleCallback(Handler.java:938) E/MethodChannel#pin_lock(10524): at android.os.Handler.dispatchMessage(Handler.java:99) E/MethodChannel#pin_lock(10524): at android.os.Looper.loopOnce(Looper.java:226) E/MethodChannel#pin_lock(10524): at android.os.Looper.loop(Looper.java:313) E/MethodChannel#pin_lock(10524): at android.app.ActivityThread.main(ActivityThread.java:8663)