Homestead SSH 连接 GitHub 失败问题？

求助Homestead中ssh连接github显示Host key verification failed问题

主机是win10，生成过id_rsa和id_rsa.pub，通过Homestead.yaml配置好了虚拟机中ssh密钥保持一致。

github上也配好了ssh公钥.出现的问题是主机可以ssh连接github，但是虚拟机中连接github一直失败，返回Host key verification failed.于是用了命令ssh -T -v git@github.com返回的信息是：

OpenSSH_7.2p2 Ubuntu-4ubuntu2.2, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to github.com [192.30.255.113] port 22.
debug1: Connection established.
debug1: identity file /home/vagrant/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/vagrant/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.2
debug1: Remote protocol version 2.0, remote software version libssh_0.7.0
debug1: no match: libssh_0.7.0
debug1: Authenticating to github.com:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8
debug1: read_passphrase: can't open /dev/tty: No such device or address
Host key verification failed.

修改了/dev/tty文件的权限sudo chmod o+rw /dev/tty.仍然返回以上信息报错。希望好心人解答一下，万分感谢！