i got an error when compiling.
how to resolve this error.$ make
[ 0%] Building CXX object src/CMakeFiles/mana.dir/gui/widgets/tab.cpp.o
In file included from /home/dhamma/Downloads/mana-0.6.1/src/gui/widgets/tab.cpp:29:0:
/home/dhamma/Downloads/mana-0.6.1/src/gui/widgets/tabbedarea.h:101:32: error: type 'TabbedArea' is not a base type for type 'TabbedArea'
make[2]: *** [src/CMakeFiles/mana.dir/gui/widgets/tab.cpp.o] Error 1
make[1]: *** [src/CMakeFiles/mana.dir/all] Error 2
make: *** [all] Error 2
thanks