Topic title. For some reason, this happens when an enemy uses a skill I made that hits all enemies (the default stuff work fine):

Script 'Sideview' line 1200: NoMethodError occurred.
undefined method 'skill_learn?' for <Game_Enemy:0X326dc98>

What can I do to fix?
Using Tankentai's Sideview 2.6 BTW

2.6 is REALLY old and buggy. You might want to consider switching to 3.3. As for the problem, does the skill hit all enemies or everyone? Because there's a fixture in the script that allows you to make skills hit everyone in the battle, and the problem may be that all-person skills don't work with 2.6.

All enemies :/
-gets 3.3-

EDIT: I got 3.3, let enemy use the same skill, and it still happened D:

EDIT: What other scripts are you using in addition to the sideview? They may be conflicting with that "skill_learn?" module.