//calling Activity written in kotlin but activity is 
    //not started and giving below-mentioned exception
Exception: android.content.ActivityNotFoundException: Unable to find explicit activity class com.myApp.personal/com.myApp.personal.camera.CameraActivityKt have you declared this activity in your AndroidManifest.xml?
    //while Registered in manifest file: 
   <activity 
   android:name=
   ".camera.CameraActivity"android:screenOrientation="fullSensor"/>
    try{ 
       File f = setUpPhotoFile(prefixString); mCurrentPhotoPath =
       f.getAbsolutePath();
       Intent intent = new Intent(this, CameraActivityKt.class);
       intent.putExtra(IConstant.PATH, mCurrentPhotoPath);    
       startActivityForResult(intent, actionCode); 
    } 
    catch(Exception ex) {
       e.printStackTrace(); 
    }