Truecrypt error: the OSXFUSE file system is not available (255)
I had a similar problem today. I installed osxfuse and ntfs-3g via Homebrew, but I didn't install the kernel extension. I got a similar error message trying to mount an NTFS drive in RW mode. After installing the osxfuse kernel extension (instructions are available via brew info osxfuse), the error went away. Strangely, it didn't happen the first time I mounted an NTFS drive using ntfs-3g.
I hope this helps.