I\'m pretty sure I saw somewhere in a popular Git project the branches had a pattern like \"feature/xyz\".
However when I try to create a branch with the slash chara
Sometimes that problem occurs if you already have a branch with the base name.
I tried this:
git checkout -b features/aName origin/features/aName
Unfortunately, I already had a branch named features, and I got the exception of the question asker.
Removing the branch features resolved the problem, the above command worked.