自动跳出来openssh的窗口，怎么干掉他呢

最近从github下载了一个spacemacs，但是每次打开都会自动跳出一个窗口，openssh的，提示内容如下，还让我输入密码，怎么干掉这个框呢，求各位大神指教啊
The authenticity of host 'host.does.not.exist (202.106.199.38)' can't be established.
RSA key fingerprint is SHA256:72tBVRSkSZ+JjEuubbrWN2ybT2KSIAOAoIeV3KfPlmk.
Are you sure you want to continue connecting (yes/no)?