当前上下文中不存在名称“Array”

Question

有谁知道我为什么会收到这个错误？这在将我的项目升级到新版本的 Unity3d 后显示。

错误 CS0103：名称“Array”在当前上下文中不存在

#if IAP && UNITY_PURCHASING
private void OnItemPurchased(IAPItem item, int index)
{
    // A consumable product has been purchased by this user.
    if (item.productType == PType.Consumable)
    {
        CurrencyController.CreditBalance(item.value);
        Toast.instance.ShowMessage("Your purchase is successful");
        CUtils.SetBuyItem();
        if(Array.IndexOf(Purchaser.instance.iapItems, item) >= 1)
        {
            CUtils.SetRemoveAds(true);
        }
    }
    // Or ... a non-consumable product has been purchased by this user.
    else if (item.productType == PType.NonConsumable)
    {
        // TODO: The non-consumable item has been successfully purchased, grant this item to the player.
    }
    // Or ... a subscription product has been purchased by this user.
    else if (item.productType == PType.Subscription)
    {
        // TODO: The subscription item has been successfully purchased, grant this to the player.
    }
}
#endif

Answer 1

聚会迟到了，但我想添加一个正式的答案。

正如评论中的多个人所建议的那样，您可能遗漏了一条using指令。更具体地说using System;。

希望这有助于未来的程序员更快地找到解决方案。