Nenhuma sobrecarga corresponde a esta chamada. Sobrecarga 1 de 2,

Eu tenho store.jsarquivo

import { createStore, combineReducers } from "redux";
import reducerADD from "../reducer/reducerADD"

export const store = createStore(combineReducers({ reducerADD}));

Quando altero o formato, store.tsxrecebo um erro:

No overload matches this call.
  Overload 1 of 2, '(reducers: ReducersMapObject<{ reducerADD: { lastName: string; firstName: string; password: string; email: string; }[]; }, any>): Reducer<{ reducerADD: { lastName: string; firstName: string; password: string; email: string; }[]; }, AnyAction>', gave the following error.
    Type '(state: never[] | undefined, action: action) => { lastName: string; firstName: string; password: string; email: string; }[]' is not assignable to type 'Reducer<{ lastName: string; firstName: string; password: string; email: string; }[], any>'.
      Types of parameters 'state' and 'state' are incompatible.
        Type '{ lastName: string; firstName: string; password: string; email: string; }[] | undefined' is not assignable to type 'never[] | undefined'.
          Type '{ lastName: string; firstName: string; password: string; email: string; }[]' is not assignable to type 'never[]'.
            Type '{ lastName: string; firstName: string; password: string; email: string; }' is not assignable to type 'never'.
  Overload 2 of 2, '(reducers: ReducersMapObject<{ reducerADD: { lastName: string; firstName: string; password: string; email: string; }[]; }, AnyAction>): Reducer<{ reducerADD: { lastName: string; firstName: string; password: string; email: string; }[]; }, AnyAction>', gave the following error.
    Type '(state: never[] | undefined, action: action) => { lastName: string; firstName: string; password: string; email: string; }[]' is not assignable to type 'Reducer<{ lastName: string; firstName: string; password: string; email: string; }[], AnyAction>'.
      Types of parameters 'state' and 'state' are incompatible.
        Type '{ lastName: string; firstName: string; password: string; email: string; }[] | undefined' is not assignable to type 'never[] | undefined'.
          Type '{ lastName: string; firstName: string; password: string; email: string; }[]' is not assignable to type 'never[]'.

Qual é a razão para isto?

O estado precisa ser um pouco mais digitado. Está tentando converter seu estado inicial de um tipo anypara outro never.

Ao criar o estado padrão para os dados, você deve definir uma interface para o seu estado, aqui está um exemplo para uma matriz de lista de tarefas:

interface IAppState {
  toDoList: any[];
}
const initialState: IAppState = {
  toDoList: []
};

export default function reducer(state = initialState, action) {}