I am trying/ have tried to install some programming software onto my 1 year old macbook. In order to do so it requires me to copy some files into the /usr/local/lib directory. I can mess with the bin directory just fine but when I try to do anything with lib it tells me its not a directory. I double checked that lib appeared in /usr/local and it was there. I tried to make a new file but it says that the file all ready exists. should i delete the other lib directory and remake it? any help would be appreciated as this has been annoying me for a long while now