"ofColor_<unsigned char>::ofColor_(ofColor_<unsigned char> const&, float)", referenced from:


I’m trying to compile code from a tutorial that I have followed that combines ofxGui, ofxOpenCv and ofxBox2d.

But when I run it, these are the errors I am receiving and I can’t work out what the problem might be as no errors appear in my ofApp.h or ofApp.cpp.

I’d appreciate any help as I’m quite new to oF.

Thanks :))))

The error is as follows;

Undefined symbols for architecture x86_64:
“ofColor_::ofColor_(ofColor_ const&, float)”, referenced from:
ofxGuiGroup::generateDraw() in ofxGuiGroup.o
ofxPanel::generateDraw() in ofxPanel.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)