/var/empty must be owned by root and not group or world-writable_messi

Today I happened to play Hadoop in my Windows machine. Just as the guide said I first installed Cygwin with ssh. I referred to [url=https://www.cs.brandeis.edu/~rshaull/cs147a-fall-2008/hadoop-windows/]this article[/url]. But when I go to step "/usr/sbin/sshd", I met a problem "/var/empty must be owned by root and not group or world-writable." Today I happened to play Hadoop in my Windows m