can't install on hAP AC2*

Hi!
Yesterday I bought hAP AC2* to use it for the Dude server.
I tried to install server Dude package but nothing happened.

I have hAP AC2* - v 6.43.1

  1. uploaded by Winbox dude-6.40.6-arm.npk(dude-6.41.3-arm.npk) to flash/dude-6.40.6-arm.npk or flash/scins/dude-6.40.6-arm.npk
  2. reboot device by System=>Reboot

… nothing happened - No Dude in package list. In terminal /dude → “bad command name dude”

What did I do wrong?

Thank you