Multiple OneWire Temp sensors on lotus v1 seeeduino

Hello, my project is calling for multiple temperature readings. I have two DS18B20 temp sensors with the grove connectors going into a lotus v1 seeeduino. I am able to get one working, but it looks like all the examples online assume you are able to link up the two sensors data cable. with the grove setup i am plugging one into D2 and the other into D6. This code is just a variation of an example I found. Does anyone have any suggestions?

The error i am getting is

error: 'TempF1' was not declared in this scope

This is the code i am using.

#include <OneWire.h>

#include <DallasTemperature.h>

// Data wire is plugged into port 2 on the Arduino

#define ONE_WIRE_BUS_1 2

#define ONE_WIRE_BUS_2 6

// Setup a oneWire instance to communicate with any OneWire devices

OneWire oneWire_1(ONE_WIRE_BUS_1);

OneWire oneWire_2(ONE_WIRE_BUS_2);

// Pass our oneWire reference to Dallas Temperature.

DallasTemperature sensor1(&oneWire_1);

DallasTemperature sensor2(&oneWire_2);    
void setup(void)
  // start serial port

  // Start up the library
  // locate devices on the bus


void loop(void)
float tempF1=sensor1.getTempFByIndex(0);
float tempF2=sensor2.getTempFByIndex(0);
Serial.print("sensor1:  ");
Serial.print("      ")
Serial.print("sensor2:  ");