ERRORS can not resolve symbol REQUEST_LOCATION

I'm getting the following errors: Error 1: can not resolve symbol REQUEST_LOCATION, Error 2: FusedLocationApi, appears crossed out.

when I try to request permission

This is the code fragment

    public void onConnected(Bundle bundle) {
        Log.d(TAG, "onConnected");

        locationRequest = LocationRequest.create();
        locationRequest.setInterval(1000); // milliseconds
        locationRequest.setFastestInterval(1000); // the fastest rate in milliseconds at which your app can handle location updates
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);


// this line of error



        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {
            // Check Permissions Now
            ActivityCompat.requestPermissions(this,
                    new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION},
                    REQUEST_LOCATION);
        } else {
            // permission has been granted, continue as usual
            Location myLocation =
                    LocationServices.FusedLocationApi.getLastLocation(googleApiClient);
        }

        LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);

    }