face recognition using opencv 3.0.0

[chfakht]

HI all,
i'm a beginner in opencv so i'm trying a few examples but a i get some compilation errors :p

for the folowing example: http://docs.opencv.org/3.0-beta/modu..._tutorial.html

when compiling using cmake i get the following errors

‘subspaceProject’ was not declared in this scope
‘subspaceReconstruct’ was not declared in this scope

thanks for your help