help me I get this and it does not allow to install
Exception has been thrown by the target of an invocation.
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at Loot.EMMLoader.AutoloadModifierPool(Type type, Mod mod)
at Loot.EMMLoader.SetupContent(Mod mod)
at Loot.Loot.Load()
at Terraria.ModLoader.ModLoader.do_Load(Object threadContext)
Inner Exception:
Could not load type 'System.Reflection.CustomAttributeExtensions' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
at Loot.Core.ModifierPool..ctor()
at Loot.Core.AllModifiersPool..ctor()