When i try to execute the following command:

aireplay-ng -1 0 -e ****** -a 00:18:39:4E:8F:FD -h 00:17:C4:0F:8B:E1 ath0
I get this error message

-bash: /usr/local/sbin/aireplay-ng: cannot execute binary file
I've searched the forums, found one reply: "It doesn't work because you have provided no information."

I'd like to say there's a lot of information in that piece of code actually!

Help a "newbie" out?