error with side_menu.dart code

[MrFunkeyfreak]

Hey, I have some issues with the side_menu.dart. I get the errors:

2 positional argument(s) expected, but 0 found - Location: side_menu.dart:53
The named parameter 'itemName' isn't defined - Location side_menu.dart:54
The named parameter 'onTap' isn't defined - Location side_menu.dart:55

You can check my github for the code. I hope u can help me, because I don't really know why I get this errors. I mean I have defined them, I haven't done much different than you in the tutorial.

I really hope u can help me.