I need help changing SSH root password

[DirtySocks85]

So I restored my phone recently (as part of the new greenpois0n release), and because I erased everything, I knew I needed to reset my password to something other than "alpine". So I tried to SSH into my phone via terminal on my Mac, and I got the error below.

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
42:46:fa:1b:57:ed:ef:a9:55:51:55:60:7e:20:72:1d.
Please contact your system administrator.
Add correct host key in /Users/Justin/.ssh/known_hosts to get rid of this message.
Offending key in /Users/Justin/.ssh/known_hosts:5
RSA host key for 192.168.1.102 has changed and you have requested strict checking.
Host key verification failed.

I've never run into this problem before. I've also tried installing MobileTerminal, but it just crashes everytime I try to launch it. Anyone have any tips?

EDIT: I fixed it by removing my known_hosts file from .ssh/known_hosts