Here's a nice little gem, if you get this sort of error:
mount_osxfuse: the file system is not available (255)
fuse failed. Common problems:
- fuse kernel module not installed (modprobe fuse)
- invalid options -- see usage message
apparently the issue is that there is a limit on the number of kernel modules OS X can load. the "fix" at least for me is to run the following:
Kextstat
which will list all of your loaded kernel modules though you can probably pick the following module fairly safely and unload it like so:
sudo kextunload -b com.apple.filesystems.smbfs
then magically doing something like.
encfs /Users/demo/Sync/Important /Users/demo/Bills
starts working without any issues.