Object Reference

I have an object reference not set to an instance of an object... here is the set of code. If you need m more of the script I will post it, but it's long.

     private void SetupSkillModifiers() {
         //Melee Offence
         ModifyingAttribute MeleeOffenceModifier1 = new ModifyingAttribute();
         ModifyingAttribute MeleeOffenceModifier2 = new ModifyingAttribute();
         
         MeleeOffenceModifier1.attribute = GetPrimaryAttribute((int)AttributeName.Might);
         MeleeOffenceModifier1.ratio = .33f;
         
         MeleeOffenceModifier2.attribute = GetPrimaryAttribute((int)AttributeName.Nimbleness);
         MeleeOffenceModifier2.ratio = .33f;
         
         >GetSkill((int)SkillName.Melee_Offence).AddModifier(MeleeOffenceModifier1);
         GetSkill((int)SkillName.Melee_Offence).AddModifier(MeleeOffenceModifier2);
         
         //melee defence
         ModifyingAttribute MeleeDefenceModifier1 = new ModifyingAttribute();
         ModifyingAttribute MeleeDefenceModifier2 = new ModifyingAttribute();
         
         MeleeDefenceModifier1.attribute = GetPrimaryAttribute((int)AttributeName.Speed);
         MeleeDefenceModifier1.ratio = .33f;
         
         MeleeDefenceModifier2.attribute = GetPrimaryAttribute((int)AttributeName.Composition);
         MeleeDefenceModifier2.ratio = .33f;
         
         GetSkill((int)SkillName.Melee_Defence).AddModifier(MeleeDefenceModifier1);
         GetSkill((int)SkillName.Melee_Defence).AddModifier(MeleeDefenceModifier2);