git pull : unable to update loca

拉代码报了更新锁定：

\error: cannot lock ref 'refs/remotes/origin/v1.0.0': is at 3cdf2617e77e93521f3fed038b4a161543131cfa but expected 0fc6b07bd33bc6c66c259cc12e87d14b5c4abeaf
From ssh://baidu.com/baiduproject
 ! 0fc6b07b...631e017e v1.0.0 -> origin/v1.0.0  (unable to update local ref)

解决办法：

git gc --prune=now
git remote prune origin
git pull