そのため、「ベータ」と呼ばれるブランチで次のことを行います。
$ git checkout master
error: The following untracked working tree files would be overwritten by checko
ut:
Documentation/packages/CoreTheme_Template_helpers.html
Documentation/packages/default.html
Please move or remove them before you can switch branches.
Aborting
Ok、
$ git status
# On branch beta
nothing to commit, working directory clean
どうしたの?