Unresolved reference 'ICamera'.

[imfadhel]

Hi Guys do you know why i still getting this error message:
Unresolved reference 'ICamera'.

import android.hardware.usb.UsbDevice
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.Spinner
import android.widget.Toast
import com.jiangdg.ausbc.base.CameraFragment
import com.jiangdg.ausbc.callback.ICameraStateCallBack
import com.jiangdg.ausbc.camera.ICamera
import com.jiangdg.ausbc.widget.IAspectRatio

all good, except for ICamera. any solution for this? please help me thanks

this is my build.gradle
implementation files("libs/libausbc-3.3.3.aar")

i downloaded at mvn repository