Advanced Autonomous Kit for Sphero RVR assembly failed

I’ve just started to assemble the Sparkfun Advanced Autonomous Kit for the Sphero RVR and now am stuck at the step to test the camera. The instructions up to this point are excellent except:

  1. It should be mentioned that the longer camera ribbon cable should replace the shorter one which came attached to the camera

  2. The “Initial Hardware Tests” section “Pi Camera & Camera Web Interface” does not work and has a typo “cd ~/RPi_Cam_Web_Interface” instead of “cd ~/RPI…”

  3. The error mentioned in 2 above is attached.

Help!