Git Pull Failed error: You have not concluded your merge (MERGE_HEAD exists).

在Git pull的时候遇到下面的错误

error: You have not concluded your merge (MERGE_HEAD exists).
hint: Please, commit your changes before merging.
fatal: Exiting because of unfinished merge.

解决：
直接commit，之后再再pull就可以顺利进行。

$ git commit -m 'info'