ecdsa key error in vb.net

Please enable ecdsa .

WinSCP ver. 5.9.1


=code=
sessionOptions.SshHostKeyFingerprint
= "ecdsa-sha2-nistp256 256 cc:1e:44:73:80:bd:cb:cc:15:9f:5b:15:ae:18:7a:46"


=error=
SSH host key fingerprint "ecdsa-sha2-nistp256 256 cc:1e:44:73:80:bd:cb:cc:15:9f:5b:15:ae:18:7a:46" does not match pattern
/((ssh-rsa|ssh-dss)( |-))?(\d+ )?([0-9a-f]{2}(-)){15}[0-9a-f]{2}(;((ssh-rsa|ssh-dss)( |-))?(\d+ )?([0-9a-f]{2}(-)){15}[0-9a-f]{2})*/

i use old dll

Solved by installing a new dll