Faces are not available in Contacts

Question

Hi, I am using OS X Yosemite 10.10.1 now with Contacts App(Version 9.0 1499) and iPhoto(Version 9.6 910.29)
The problem in the Contacts App is that I can't add photos using faces.
When I try to add a picture of someone whose face is already in iPhoto by selecting "Faces" in the window of the Contacts App,
it says "Find and organize photos of people in iPhoto or Aperture using Faces."
I don't understand this because this works quite well in 10.7 Lion on my old MacBook. I can't figure out why even after rebuilding the iPhoto Library.
By the way, I am a Chinese user. I think it is caused by the name error.  Because in the older version of the Mac, there is a space bar between the first name and the last name. But the newer version of the Contacts has removed that space bar, for it is no need for Chinese. However, iPhoto still use that space bar.
Then the question comes again, even I remove the space bar in iPhoto, it doesn't work.
Anyone can help? Thx.

Answer 1

Try doing it this way.
Have Contacts open and the desired contact selected
Click on the Edit button in the bottom right of the contact
Open iPhoto and select the photo of the person you want to use
Drag the photo in to the photo box in the contact window