Error while trying to access PI from my laptop

FlightAware ADS-B Flight Tracking
1

With my normal build I was able to access the pi from both my laptop and desktop. Now I am ok with Desktop but when I tried to access from the laptop
I get this error

(my linux Laptop) ~ $ ssh 192.168.1.11 -l pi
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
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 a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is
(hostke) Please contact your system administrator.
Add correct host key in /home/w7psk/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/w7psk/.ssh/known_hosts:5
remove with: ssh-keygen -f “/home/w7psk/.ssh/known_hosts” -R 192.168.1.11
ECDSA host key for 192.168.1.11 has changed and you have requested strict checking.
Host key verification failed.

2

Something has caused new host keys to be on the pi. Did you install a new copy of the operating system… I.e downloaded and installed a new image? By default, New keys are generated when you first boot a new image. I get this message regularly when I swap SD cards. Usually you have the option, on the remote system, to replace the old key with the new one. It looks like you may be using an ssh option on your laptop that prohibits that. At least that’s what I gather from the messages. If you don’t have the option to replace it, you will have to edit the file listed and add the key manually. I recommend you turn off the strict checking. If both systems are on the local LAN at home, you don’t need strict checking. It would be hard for someone to do a MITM Attack in your home.

3

LINUX is such fun. I found I was still logged in on my Desktop. I deleted the file here on the laptop that the pi put on. So
I deleted it and could log in fine.