Method arguments are incompatible in a system script. What to do?

Question

Unity

ArgumentException: method arguments are incompatible
System.Delegate.CreateDelegate (System.Type type, System.Object firstArgument, System.Reflection.MethodInfo method, System.Boolean throwOnBindFailure, System.Boolean allowClosed) (at <fb001e01371b4adca20013e0ac763896>:0)
System.Delegate.CreateDelegate (System.Type type, System.Object firstArgument, System.Reflection.MethodInfo method) (at <fb001e01371b4adca20013e0ac763896>:0)
UnityEngine.Events.InvokableCall..ctor (System.Object target, System.Reflection.MethodInfo theFunction) (at <49f4e7e791cc4fffacd88f729e2b1e4c>:0)
UnityEngine.Events.PersistentCall.GetRuntimeCall (UnityEngine.Events.UnityEventBase theEvent) (at <49f4e7e791cc4fffacd88f729e2b1e4c>:0)
UnityEngine.Events.PersistentCallGroup.Initialize (UnityEngine.Events.InvokableCallList invokableList, UnityEngine.Events.UnityEventBase unityEventBase) (at <49f4e7e791cc4fffacd88f729e2b1e4c>:0)
UnityEngine.Events.UnityEventBase.RebuildPersistentCallsIfNeeded () (at <49f4e7e791cc4fffacd88f729e2b1e4c>:0)
UnityEngine.Events.UnityEventBase.PrepareInvoke () (at <49f4e7e791cc4fffacd88f729e2b1e4c>:0)
UnityEngine.Events.UnityEvent.Invoke () (at <49f4e7e791cc4fffacd88f729e2b1e4c>:0)
UnityEngine.UI.Button.Press () (at E:/Unity/2020.1.3f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/UI/Core/Button.cs:68)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at E:/Unity/2020.1.3f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/UI/Core/Button.cs:110)
UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at E:/Unity/2020.1.3f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/ExecuteEvents.cs:50)
UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) (at E:/Unity/2020.1.3f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/ExecuteEvents.cs:261)
UnityEngine.EventSystems.EventSystem:Update() (at E:/Unity/2020.1.3f1/Editor/Data/Resources/PackageManager/BuiltInPackages/com.unity.ugui/Runtime/EventSystem/EventSystem.cs:376)

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