I began to develop a recreation in Cocos2d-x- and I had issue transferring my sprite by keyboard enter,I attempted a tutorial I discovered in rezghob weblog and however it doesn’t transfer, right here is my code :

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    auto eventListener = EventListenerKeyboard::create();

    eventListener->onKeyPressed = CC_CALLBACK_2(Level1::onKeyPressed , this);
    eventListener->onKeyPressed = CC_CALLBACK_2(Level1::onKeyReleased, this);

    _eventDispatcher->addEventListenerWithSceneGraphPriority(eventListener , this);

    this->scheduleUpdate();
    return true;

void Level1::onKeyPressed(EventKeyboard::KeyCode keyCode , Event *occasion)
{

        if (keys.discover(keyCode) == keys.finish())
        {
            keys[keyCode] = std::chrono::system_clock::now();
        }

        CCLOG ("Number of Keys: " , keys.measurement() );
}

void Level1::onKeyReleased(EventKeyboard::KeyCode keyCode, Event* occasion)
{
    if (keys.discover(keyCode) != keys.finish())
    {
        std::chrono::length<double> elapsed_seconds = std::chrono::system_clock::now() - keys[keyCode];
        CCLOG("Key code %d   was down for %f s", int(keyCode), elapsed_seconds.rely() );
    }
    keys.erase(keyCode);

    CCLOG("Number of Keys:%f " , keys.measurement() );
}

void Level1::replace(float delta)
{
    float translate = 10.0 * delta;

    if (keys.discover(EventKeyboard::KeyCode::KEY_LEFT_ARROW) != keys.finish())
    {
        X = X - translate;
    }

    else if(keys.discover(EventKeyboard::KeyCode::KEY_RIGHT_ARROW) != keys.finish())
    {
        X = X + translate;
    }

    else if(keys.discover(EventKeyboard::KeyCode::KEY_UP_ARROW) != keys.finish())
    {
        Y = Y + translate;
    }

    else if(keys.discover(EventKeyboard::KeyCode::KEY_DOWN_ARROW) != keys.finish())
    {
        Y = Y - translate;
    }
    auto _player = this->getChildByTag(1);
    _player->setPosition(X, Y);

You changed Pressed perform with Released:

Use please

eventListener->onKeyReleased = …

Why am I displaying this line of code error right here:

keys[keyCode] = std::chrono::system_clock::now();

The error as follows:
No applicable conversion perform for ‘std::chrono::system_clock::time_point’ to ‘bool’ exists