I am trying to squash the git commits with following command

$ git rebase -i HEAD~3

But after running above command I am facing following error:

fatal: invalid upstream 'HEAD~3'

CodePudding user response：

You get the invalid upstream <xxx> message when <xxx> doesn't match anything known to git.

In your case : if you are on a fresh branch with only 3 commits, HEAD~3 (the 3rd parent of current commit) does not exist, hence the message.

To squash commits together, you can use :

git reset --soft <sha of the first commit>  # or : git reset --soft HEAD~2
git commit --amend

If you want to use git rebase, there is a special --root option to say "rebase the whole branch" :

git rebase -i --root