$ encfs ~/encrypted_folder ~/mount_point (FileUtils.cpp:1649) Unable to find nameio interface nameio/block, version 4:0:0 this can be solved by upgrading to a more recent version of encfs. http://stackoverflow.com/questions/26547247/encfs-decryption-filename-encoding-nameio-block-4-0-0-not-supported
Upgrade was submitted in PR#210532 and is committed.