Subject: fatal: Not a valid object name: 'master'.

From: "helight.xu" <[email-masked]>
Date: Tue, 17 Jun 2008 15:05:37 +0800

Hi everyone here,

    I manger my websit with git,but today I cann't use it anymore.

fatal: Not a valid object name: 'master'.

How can i do,anyone can help me?