plot_label_from_stc.py: Exception: The source space does not appear to be an ico surface

Hi all

I have been trying to run portions of the code contained in the example "plot_label_from_stc.py" going through line by line thing are well until this command:

func_labels, _ = mne.stc_to_label(stc_mean_label, src=src, smooth=5,
                                 subjects_dir=subjects_dir, connected=True)

at this point i get the following output errors:

Reading labels from parcellation..
Triangle file: created by neuromag on Wed Feb 20 19:45:05 2013 nvert = 136162 ntri = 272320
  read 34 labels from /mnt/thothdisk1/K_AWARD/K_DATA/MEG_DATA/L7689/label/lh.aparc.annot
Triangle file: created by neuromag on Wed Feb 20 22:57:01 2013 nvert = 138400 ntri = 276796
  read 34 labels from /mnt/thothdisk1/K_AWARD/K_DATA/MEG_DATA/L7689/label/rh.aparc.annot
[done]