build qt examples - animatedtiles fail (Need to install g++)

Following

Qt version path error ( you need to install qt sdk )

I got qt example and try to build animatedtiles examples.

But got following error.

make: g++: Command not found
make: *** [main.o] Error 127
The process "/usr/bin/make" exited with code %2.

I think I don't install develop tools on this new machine.