fix empty example
fix empty example

tpltnt/SimpleCV,sightmachine/SimpleCV,sightmachine/SimpleCV2,hurdlea/SimpleCV,beni55/SimpleCV,hurdlea/SimpleCV,sightmachine/SimpleCV,nils-werner/SimpleCV,beni55/SimpleCV,nils-werner/SimpleCV,hurdlea/SimpleCV,beni55/SimpleCV,hurdlea/SimpleCV,gskielian/SimpleCV,nils-werner/SimpleCV,jyt109/SimpleCV,tpltnt/SimpleCV,hayd/SimpleCV,jayrambhia/SimpleCV2,gskielian/SimpleCV,jyt109/SimpleCV,nils-werner/SimpleCV,tpltnt/SimpleCV,sightmachine/SimpleCV2,hurdlea/SimpleCV,jlegendary/SimpleCV,nils-werner/SimpleCV,hayd/SimpleCV,tpltnt/SimpleCV,hayd/SimpleCV,onaclovtech/SimpleCV,jayrambhia/SimpleCV2,onaclovtech/SimpleCV,sightmachine/SimpleCV,beni55/SimpleCV,jyt109/SimpleCV,jlegendary/SimpleCV,sightmachine/SimpleCV,gskielian/SimpleCV,jayrambhia/SimpleCV2,onaclovtech/SimpleCV,beni55/SimpleCV,jlegendary/SimpleCV,sightmachine/SimpleCV2,sightmachine/SimpleCV,onaclovtech/SimpleCV,jyt109/SimpleCV,hayd/SimpleCV,hayd/SimpleCV,jyt109/SimpleCV,jlegendary/SimpleCV,tpltnt/SimpleCV,onaclovtech/SimpleCV,gskielian/SimpleCV,jlegendary/SimpleCV,sightmachine/SimpleCV2,gskielian/SimpleCV,jayrambhia/SimpleCV2