Tanks Tutorial Camera Script error

After adding the Camera Control script no dropdown option is showed for tagets. I tried the script in complete folder too, but nothing is helping. Need help ASAP!!
Image is attached ! please have a look

If you open up your CameraControl folder in the CameraRig GameObject, you should see the code that is given to you. Line 8 has something along the lines of [HideInspector] or something similar. Just delete the line and save. Your problem should be solved. (: