'ofVec3f' does not name a type

why am i getting this error, regardless of what of version (0.062 and 0.7) and different ports of openni addon?

/Users/alpguneysel/Desktop/_dev/openframeworks/007/apps/alp/example/…/…/…/addons/ofxOpenNI/src/ofxTrackedUser.h:22:0 /Users/alpguneysel/Desktop/_dev/openframeworks/007/apps/alp/example/…/…/…/addons/ofxOpenNI/src/ofxTrackedUser.h:22: error: ‘ofVec3f’ does not name a type

That’s from OF 007, which, if you want to grab it can be found at https://github.com/openframeworks/openFrameworks, however you should be able to run the openNI addon with 0062. Looking here: https://github.com/gameoverhack/ofxOpenNI you should run the master or dev branch, but not the experimental one.