Problem Installing LSTP in Mate

[Ordinary12]

Hey Guys,

I have just finished installing Mint 13 (Mate Edition) on my desktop and the first thing I wanted to setup was LSTP. I found a post from someone on here that gave directions on how to do it but of course it didn't work for me. I keep getting the message below:

kendall@Prisoner1 /usr/share/ltsp/plugins/ltsp-build-client $ sudo ltsp-build-client --arch i386 --dist precise
NOTE: Root directory /opt/ltsp/i386 already exists, this will lead to problems, please remove it before trying again. Exiting.
error: LTSP client installation ended abnormally


Does anyone know how to fix this?