I finished react redux but still console error still reamins

import React, {Component, PropTypes} from 'react';
import { bindActionCreators } from 'redux';
import { connect } from 'react-redux';
import * as PlayerActionCreators from '../actions/player';
import Player from '../components/Player';
import Header from '../components/Header';
import AddPlayerForm from '../components/AddPlayerForm';


class Scoreboard extends Component {

    static PropTypes = {
        players: PropTypes.array.isRequired
    };

    render() {

        const { dispatch, players } = this.props;
        const addPlayer = bindActionCreators(PlayerActionCreators.addPlayer, dispatch);
        const removePlayer = bindActionCreators(PlayerActionCreators.removePlayer, dispatch);
        const updatePlayerScore = bindActionCreators(PlayerActionCreators.updatePlayerScore, dispatch);

        const playerComponents = players.map((player, index) => (
                <Player
                    index={index}
                    name={player.name}
                    score={player.score}
                    key={player.name}
                    updatePlayerScore={updatePlayerScore}
                    removePlayer={removePlayer}
                />
            ));


        return (
          <div className="scoreboard">
            <Header players = { players } />
            <div className="players">
                { playerComponents }
            </div>
            <AddPlayerForm addPlayer={addPlayer} />
          </div>
        );
      }
}

const mapStateToProps = state => ( {
        players: state.players,
    }

);

export default connect(mapStateToProps)(Scoreboard);