You're running Apache 2.x and you are getting a "Forbidden" error in the browser. The error log states "Symbolic link not allowed: /path/to/file". You make sure that you put the "Options FollowSymLinks" in the right place in your Apache config file and it's still reporting the same error.
It turns out that Apache reports this same "Symbolic link not allowed" error if symbolic links are allowed but the symbolic link is pointing to a non-existent file.
I obviously wouldn't make this basic mistake, but I thought I might save somebody else 30 minutes of debugging down the wrong path. Because (I imagine) this would really be frustrating.