App Keeps Crashing When Connecting
so i am trying to connect to a tablet, i hope that works i know this code is for microcontrollers
but whenever i try to connect the app keeps crashing and gives me this error
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.ahmedabdelmeged.bluetoothmcsample, PID: 5505 java.lang.IllegalArgumentException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter aVoid at com.ahmedabdelmeged.bluetoothmc.BluetoothMC$ConnectBT.onPostExecute(BluetoothMC.kt) at com.ahmedabdelmeged.bluetoothmc.BluetoothMC$ConnectBT.onPostExecute(BluetoothMC.kt:155) at android.os.AsyncTask.finish(AsyncTask.java:662) at android.os.AsyncTask.-wrap1(AsyncTask.java) at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:679) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5468) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:781) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:671)