Deploying to hardware error

i am trying to deploy a simple code to arduino uno from simulink but i keep getting this error:

( The call to realtime_make_rtw_hook, during the after_make hook generated the following error: The build failed with the following message: make: untitled456456.mk: No such file or directory make: * No rule to make target `untitled456456.mk'. Stop.

The build process will terminate as a result.

The build failed with the following message: make: untitled456456.mk: No such file or directory make: * No rule to make target `untitled456456.mk'. Stop.)

please help me???

[mounika]

Try this Simple example to check if your connections are right: https://in.mathworks.com/videos/programming-arduino-uno-with-simulink-86316.html