Key Bindings: Application Run Error [SOLVED]

I've not read that book, so can only guess what you're trying to do, something to do with connecting a projector or monitor?  Maybe set your TV to clone desktop?  Does it work for you manually?  What is the actual problem?

In any case, when you get that error from Moksha, regardless of what causes it, you can run the same thing from a terminal to see what the error message might be.

Did you make that script yourself? If so I imagine it probably has some syntax error, if you can paste the script here perhaps we can help if the error message doesn't explain it. Or maybe you forgot to mark it executable? If that book describes making it, probably mentioned that, but fy it's:

chmod +x ~/.screenlayout/HisenseTVclone.sh

I would also avoid using ~/ in scripts and other places besides when manually typing in terminal, as there are some situations where shell/environment/user is different and that wont work right.  Just use /home/username/ to be safe always.

Is this a typo?
sh ~./screenlayout/HisenseTVclone.sh
or is it like that in your command?
Because I'm pretty sure it should be

~/.screen... instead of ~./screen..