I am trying to clone but it shows this is not a valid source path/URL

[ranjeet]

full error :-

Command: git -c diff.mnemonicprefix=false -c core.quotepath=false --no-optional-locks ls-remote git@git.ucsf.edu:eia-integrationservices-mule/its-location-publisher-proxy.git
Output:
Error: The server's host key is not cached in the registry. You
have no guarantee that the server is the computer you
think it is.
The server's ecdsa-sha2-nistp256 key fingerprint is:
ecdsa-sha2-nistp256 256 bf:b8:04:eb:f1:9c:f7:8e:3a:65:f4:3a:e5:7d:2d:02
If you trust this host, enter "y" to add the key to
PuTTY's cache and carry on connecting.
If you want to carry on connecting just once, without
adding the key to the cache, enter "n".
If you do not trust this host, press Return to abandon the
connection.
Store key in cache? (y/n) fatal: Could not read from remote repository.