Error: The following directories are not writable by your user

Error: The following directories are not writable by your user:

/usr/local/sbin

 You should change the ownership of these directories to your user.
您应该将这些目录的所有权更改为您的用户。
  sudo chown -R $(whoami) /usr/local/sbin

And make sure that your user has write permission.
并确保您的用户具有写权限。
  chmod u+w /usr/local/sbin