Not getting constellation output

1).I am not finding QT GUI Constellation block/ QT GUI Frequency sink
blocks s in my GNU Radio 3.6.5. How to integrate those blocks in to my
GNU Radio?.
2).When I tried to execute the enclosed GRC file, I am not finding any
constellation output.
3). I tried by attaching Scope/FFT sinks at the output but not getting
any waveforms.

Please resolve my problem. Any help is accepted and appreciated.

The GRC file taken from the paper “rondeau-mpsk_tutorial.pdf” (See page
and my GRC is follows the above file and replaced QT GUI Costellation
blocks replaced with Wx GUI Constellation block.