Question: I have two menu items for dir, mark, regexp, multiple and single on the menu bar in dired mode. While it doesn't affect the usage, but it seems something is wrong and makes me feel uncomfortable. Anyone know what is the cause?
Thank you very much!

Answer: 
Do you see this problem already with `emacs -Q`?
If not, then try to see which part of your config file triggers this problem.
Someone else has the same issue. Here is the bug report
<https://bitbucket.org/lyro/evil/issue/404/dired-menus-are-duplicated>