'PFObject'没有名为'下标'的成员 [英] 'PFObject' does not have a member named 'subscript'

问题描述

据我所知，这个特殊的错误已经在这里和那里发布了，而且代码有些基本，但我自己仍然无法想出这一个&我需要建议。

I understand, this particular error was already posted here and there and the code is somewhat basic, but I myself still unable to figure this one out & I need advice.

当我添加前两行在parse.com上提供用于保存对象的代码

var gameScore = PFObject(className:"GameScore")
gameScore["score"] = 1337

我收到以下错误对于第二行：

I get the following error for the second line:

'PFObject'没有名为'subscript'的成员

'PFObject' does not have a member named 'subscript'

我在Xcode 6.3 beta 2上。
所有必需的库都与二进制文件链接，< Parse / Parse.h> 通过BridgeHeader导入。

I'm on Xcode 6.3 beta 2. All required libraries are linked with binary, <Parse/Parse.h> imported via BridgeHeader.

我应该使用什么语法？

推荐答案

这是因为解析sdk的1.6.4版本在框架中添加了Objective-C Nullability Annotations。特别是文件 Parse / PFObject.h 定义：

This is happening due to the 1.6.4 version of the parse sdk which added Objective-C Nullability Annotations to the framework. In particular the file Parse/PFObject.h defines:

- （PF_NULLABLE_S id） objectForKeyedSubscript：（NSString *）key;

导致Swift编译错误。删除 PF_NULLABLE_S 可修复此问题。

which is causing the Swift compile error. Removing the PF_NULLABLE_S fixes the problem.

另一方面，键控下标的对象可能 nil 似乎是正确的，所以我怀疑这个是一个Swift bug ......

On the other hand it seems correct that an object for a keyed subscript might be nil, so I suspect this is a Swift bug...

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