What are CubaseLite 6 device settings with Tascam 366. I cant record anything, is it enough to connect Tascam with USB connection to laptop or should I need any else connection.
Have you downloaded and installed the proper driver for your interface?
Interface connected before launching Cubase?
Have you read the f’n manuals? 
You might want to give some details about your computer setup, too …
In the meantime, this might help … ?