Not work for ProximityZoneBuilder

[michaelleung-mif]

• I tried Estimote SDK version 1.0.5, 1.0.7, 1.0.8

• I granted all permission
  android.permission.BLUETOOTH_CONNECT,
  android.permission.BLUETOOTH_SCAN,
  android.permission.ACCESS_FINE_LOCATION

    val officeZone = ProximityZoneBuilder()
            .forTag("OfficeZone")
            .inFarRange()
            .onEnter {
                Logcat.i(TAG, "OfficeZone onEnter major: ${it.attachments["major"]}, ${it.attachments["minor"]}")
                listener?.success(BeaconLocation(it.attachments["major"], it.attachments["minor"]))
            }
            .onContextChange { pzc ->
                pzc.last().also { pz ->
                    Logcat.i(TAG, "OfficeZone major: ${pz.attachments["major"]}, ${pz.attachments["minor"]}")
                    listener?.success(BeaconLocation(pz.attachments["major"], pz.attachments["minor"]))
                }
            }.build()
  
    proximityObserverHandler = proximityObserver?.startObserving(officeZone)
  

but no response from onEnter / onContextChange function, and no received any error, but not work

[michaelleung-mif]

we used the old version gradle-5.4.1 is work
after we upgrade to gradle-6.1.1 or above, it is not work