Issue with downloading tool on a local galaxy

Hi there,

I am trying to download tools to my local galaxy but whatever tool I download it instantly says error and that it a file / directory cannot be found. i.e
[Errno 2] No such file or directory: ‘/Volumes/My Book/Galaxy/galaxy/tool-data/sift_db.loc’

When I check the file is there. Why is this happening?

thank you,