Why does creating new branches in Xcode9 always happen with an "invalid branch name"?

Question

Whenever I try to create a new branch, it says: The name "MY-BRANCH-NAME" is not a valid branch name. I am adding the steps that I followed while trying to create a new branch.

Why is this happening?

Ps- There are no uncommitted changes, and everything is put into the github repository.

Answer 1

I have the same problem. Looks like an xcode error.

xcode Version 9.0 beta 3 (9M174d)

xcode, sourcetree , xcode, . spritekit.

apple: https://bugreport.apple.com/web/?problemID=33497210

Answer 2

git? . : "git checkout -b new-branch-name", , . , , git, .