mcmaster@phantom:~/doc/ext/die-toy$ make
[ 16%] Automatic moc and rcc for target dieToy
[ 16%] Built target dieToy_automoc
[ 33%] Building CXX object CMakeFiles/dieToy.dir/src/main.cpp.o
In file included from /home/mcmaster/doc/ext/die-toy/src/main.cpp:1:0:
/home/mcmaster/doc/ext/die-toy/src/MainWindow.h:104:13: error: ‘ml’ is not a member of ‘cv’
     cv::Ptr<cv::ml::KNearest> m_bitLocationTree;
             ^
/home/mcmaster/doc/ext/die-toy/src/MainWindow.h:104:13: error: ‘ml’ is not a member of ‘cv’
/home/mcmaster/doc/ext/die-toy/src/MainWindow.h:104:29: error: template argument 1 is invalid
     cv::Ptr<cv::ml::KNearest> m_bitLocationTree;
                             ^
CMakeFiles/dieToy.dir/build.make:62: recipe for target 'CMakeFiles/dieToy.dir/src/main.cpp.o' failed
make[2]: *** [CMakeFiles/dieToy.dir/src/main.cpp.o] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/dieToy.dir/all' failed
make[1]: *** [CMakeFiles/dieToy.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2