git fatal: refusing to merge unrelated histories

说明

有时在pull或merge时会出现下述错误：

fatal: refusing to merge unrelated histories

解决办法：

git merge origin/master --allow-unrelated-histories

结果如下：

$ git merge origin/master --allow-unrelated-histories
Already up to date!
Merge made by the 'recursive' strategy.

只需要在命令的最后面添加--allow-unrelated-histories，这句话是告诉Git允许不相关历史合并。