c# - 名称 `Array'在当前上下文中不存在

Question

有人知道为什么我会收到此错误吗？这显示将我的项目升级到新版本的Unity3d之后。

Error CS0103: The name `Array' does not exist in the current context

#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

晚会晚了，但我想添加一个官方答案。

正如评论中的多个建议所建议，您可能缺少using指令。更具体地说using System;。

希望这有助于将来的程序员更快地找到解决方案。