command which i use :- knife bootstrap 172.31.29.129 --ssh-user ec2-user --sudo -i node.pem -N node1
error :-
Are you sure you want to continue connecting
? (Y/N) Y
WARN: [SSH] PTY requested: stderr will be merged into stdout
WARN: [SSH] connection failed, terminating (#<Net::SSH::AuthenticationFailed: Authentication failed for user x.x.x.x
ERROR: Train::Transports::SSHFailed: SSH session could not be established
please help i am new to chef