【The authenticity of host 'heroku.com (50.19.85.132)' can't be established.】怎么解决？

输入git push heroku master命令之后，显示：
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The authenticity of host 'heroku.com (50.19.85.132)' can't be established.
RSA key fingerprint is 8b:48:5e:67:0e:c9:16:47:32:f2:87:0c:1f:c8:60:ad.
Are you sure you want to continue connecting (yes/no)?
Host key verification failed.
fatal: The remote end hung up unexpectedly
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这是怎么回事呀？怎么办呢？

Original issue reported on code.google.com by ooxx.1...@gmail.com on 6 Nov 2012 at 3:41

Merged into: #108

请认真阅读相应的文档加上Google后，确定自己无法解决后，�� 来创建新的Issue。类似的问题接着回复就好，不必每次都创�� 一个新的Issue的。现在很忙，5个小时后，可能有时间，再帮你看看问题原因。

good20087758521 / apjp

【The authenticity of host 'heroku.com (50.19.85.132)' can't be established.】怎么解决？ #107