Simbol manager Error in Mapbox api

Begin at MainActivity.kt:51, where SymbolManager is constructed, then trace AnnotationManager.java:87 and the onDidFinishLoadingStyle callback shown in MapChangeReceiver.java. Reproduce the BootstrapMethodError with the displayed style-loading flow; done means identifying the cause and documenting a verified resolution.

Logcat Error

2020-01-01 15:25:41.098 31695-31695/com.tikrosoft.mapboxtesting E/Mbgl-MapChangeReceiver: Exception in onDidFinishLoadingStyle
java.lang.BootstrapMethodError: Exception from call site #0 bootstrap method
at com.mapbox.mapboxsdk.plugins.annotation.AnnotationManager.(AnnotationManager.java:87)
at com.mapbox.mapboxsdk.plugins.annotation.SymbolManager.(SymbolManager.java:79)
at com.mapbox.mapboxsdk.plugins.annotation.SymbolManager.(SymbolManager.java:56)
at com.mapbox.mapboxsdk.plugins.annotation.SymbolManager.(SymbolManager.java:44)
at com.tikrosoft.mapboxtesting.MainActivity$onCreate$1$onMapReady$1.onStyleLoaded(MainActivity.kt:51)
at com.mapbox.mapboxsdk.maps.MapboxMap.notifyStyleLoaded(MapboxMap.java:889)
at com.mapbox.mapboxsdk.maps.MapboxMap.onFinishLoadingStyle(MapboxMap.java:213)
at com.mapbox.mapboxsdk.maps.MapView$MapCallback.onDidFinishLoadingStyle(MapView.java:1268)
at com.mapbox.mapboxsdk.maps.MapChangeReceiver.onDidFinishLoadingStyle(MapChangeReceiver.java:198)
at com.mapbox.mapboxsdk.maps.NativeMapView.onDidFinishLoadingStyle(NativeMapView.java:1054)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:326)
at android.os.Looper.loop(Looper.java:160)
at android.app.ActivityThread.main(ActivityThread.java:6825)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:497)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

Mainactivity Code

class MainActivity : AppCompatActivity() {

private var symbolManager: SymbolManager?=null
private val symbols: List<Symbol> = ArrayList()

private lateinit var map: MapboxMap
private lateinit var mapView: MapView
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    Mapbox.getInstance(getApplicationContext(), getString(R.string.mapbox_access_token))
    setContentView(R.layout.activity_main)

    mapView = findViewById(R.id.mapView)
    mapView.onCreate(savedInstanceState)
    mapView.getMapAsync(object : OnMapReadyCallback{

        override fun onMapReady(mapboxMap: MapboxMap) {


            mapboxMap.setStyle(Style.MAPBOX_STREETS,object : Style.OnStyleLoaded{

                override fun onStyleLoaded(style: Style) {

                    map=mapboxMap
                    style.addImage("Me", BitmapFactory.decodeResource(getResources(),R.drawable.custom_marker))
                    symbolManager = SymbolManager(mapView, mapboxMap, style)
                    symbolManager?.iconAllowOverlap = true
                   symbolManager?.textAllowOverlap = false

                }

            })
        }

    })
    button2.setOnClickListener{

        movetoUserLocation()
    }



}

private fun movetoUserLocation() {

    map.animateCamera(CameraUpdateFactory.newLatLngZoom(LatLng(33.637,73.062),15.0))

}

override fun onStart() {
    super.onStart()
    mapView.onStart()
}

override fun onResume() {
    super.onResume()
    mapView.onResume()
}

override fun onPause() {
    super.onPause()
    mapView.onPause()
}

override fun onStop() {
    super.onStop()
    mapView.onStop()
}

override fun onSaveInstanceState(outState: Bundle) {
    super.onSaveInstanceState(outState)
    mapView.onSaveInstanceState(outState)
}

override fun onLowMemory() {
    super.onLowMemory()
    mapView.onLowMemory()
}

override fun onDestroy() {
    super.onDestroy()
    mapView.onDestroy()
}

can anyone tell me why i m getting this error
Thanks in advance