ofxCv compile issue

I am using Qt creator 4.2.1 on ubuntu 16.04

While compiling I get error messages like /home/kesav/Downloads/of_v0.9.8_linux64_release/addons/ofxCv/libs/ofxCv/src/ObjectFinder.cpp:1: error: ofxCv/ObjectFinder.h: No such file or directory

I changed the .qbs file to include search paths and also added ofxCv into of.addons

My addons.config.mk file has:

ADDON_INCLUDES = libs/ofxCv/include
ADDON_INCLUDES += libs/CLD/include/CLD
ADDON_INCLUDES += libs/ofxCv/include/ofxCv

What else am I missing?