SSH error1

PS C:\chef\learn-chef\cookbooks> ssh -v -i ~/.ssh/id_rsa.ppk opc@129.146.28.150
OpenSSH_7.1p2, OpenSSL 1.0.2h  3 May 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to 129.146.28.150 [129.146.28.150] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/patilp/.ssh/id_rsa.ppk type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/patilp/.ssh/id_rsa.ppk-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1
debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000
debug1: Authenticating to 129.146.28.150:22 as 'opc'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client chacha20-poly1305@openssh.com <implicit> none
debug1: kex: client->server chacha20-poly1305@openssh.com <implicit> none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:ka2MCKCBO9Ew1p6F7LYWCicYkQBocSpR5DFGpVq744U
debug1: Host '129.146.28.150' is known and matches the ECDSA host key.
debug1: Found key in /c/Users/patilp/.ssh/known_hosts:1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /c/Users/patilp/.ssh/id_rsa.ppk
Enter passphrase for key '/c/Users/patilp/.ssh/id_rsa.ppk':