git warning: refname 'HEAD' is ambiguous. What is the problem?

Question

git status
git warning: refname 'HEAD' is ambiguous
git warning: refname 'HEAD' is ambiguous
On branch develop
Your branch is up-to-date with 'origin/develop'
nothing to commit, working tree clean

The ref information is as follows

git show-ref
...... refs/heads/HEAD
...... refs/heads/develop
...... refs/heads/master
...... refs/remotes/origin/HEAD
...... refs/remotes/origin/develop
...... refs/remotes/origin/master
...... refs/tags/v1.0
...... refs/tags/v1.1

How to solve it?

Answer 1

This problem is because you have a branch called HEAD 的分支造成的，这个名字你可以看作是一个保留字，它用于标示哪个分支是 当前分支 ，而不应该直接拿来做分支的名字（但是 remote 的 HEAD 分支是 OK 的，比如 origin/HEAD，经常有人把这个 checkout 下来，结果就变成了本地的 HEAD, which is where this problem comes from).

The solution is very simple. Just delete or rename the branch. For example, delete:

git branch -D HEAD

In addition, someone also created a tag using HEAD, which will also cause the same problem, p.s.