blocks|key|587563|text|“Mac错误-50”表示paramErr，这是一个老式的OSStatus错误代码，表示错误的参数。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|587564|entityMap^0|C|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

“ OSStatus error -50” means <code>paramErr</code>, an old-style Mac error code indicating a bad parameter.

blocks|key|587578|text|关于来自Brynjar的评论:描述URLWithString状态的苹果NSURL类参考|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|587579|587580|要为文件系统路径创建NSURL对象，请改用fileURLWithPath:isDirectory：。|blockquote|587581|587582|587583|我发现，对文件系统路径使用URLWithString会生成pix0r报告的错误，因此可能是错误代码=+-50的另一种解释|587584|entityMap^0|H|D|Z|5|0|0|0|0|0|D|D|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|U|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|V|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|W|8|@]|D|@]|E|$]]|$1|K|3|-4|5|6|7|X|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|O|$]]

Regarding the comment from Brynjar:
The Apple <code>NSURL</code> Class Reference describing <code>URLWithString</code> states 

<blockquote>
 To create NSURL objects for file system paths, use
 fileURLWithPath:isDirectory: instead.
</blockquote>

I have found that using <code>URLWithString</code> for file system paths generates the error reported by pix0r and therefore could be another explanation for error code = -50

blocks|key|642907|text|请确保您的NSURL有效，否则将收到错误代码-50“操作无法完成”。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|642908|entityMap^0|5|5|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Make sure your <code>NSURL</code> is valid, or you will get error code -50 "Operation could not be completed".

blocks|key|587512|text|我添加了问题和解决方案的我的版本，因为我在使用print语句时遇到了错误。我认为这与字符串插值或尝试强制打印nsattributedstrings字符串有关。我尝试做以下事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|587513|print("THE+ARRAY+COUNT+IS+:+\(unwrappedResults.count)\n\n\n+
THE+FULL+ARRAY+IS+THE+FIRST+WHOLE+RESULT+IS:+\(unwrappedResults)\n\n\n+\+(unwrappedResults[0])\n

THE+ATTRIBUTED+FULL+TEXT+IS:+\(unwrappedResults[0].attributedFullText)\n\n\n+
THE+ATTRIBUTED+PRIMARY+TEXT+IS:+\(unwrappedResults[0].attributedPrimaryText)\n\n\n+
THE+ATTRIBUTED+SECONDARY+TEXT+IS:+\(unwrappedResults[0].attributedSecondaryText)\n\n\n")|code-block|syntax|javascript|587514|这是不正确的，不会打印出来。我会在控制台中收到以下错误消息。|587515|xpc+boringssl_metrics_log_metric_block_invoke(131)无法记录指标&+boringssl_metrics_log_metric_block_invoke(133)错误类型代码=-50“不支持的xpc类型”类型{NSDescription=Unsupported+xpc+Domain=NSOSStatusErrorDomain+}|587516|587517|我通过改变/变量值的解包方式修复了这个问题。基本上，我认为我试图使用字符串插值打印一些无法打印的东西，这就是导致这个错误的原因。|587518|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Q|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|R|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|S|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|U|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|O|$]]

I'm adding my version of the issue and solution because I encountered the error with a print statement. I think it was related to string interpolation and or trying to forcibly print nsattributedstrings. I attempted to do the following.

<pre><code>print("THE ARRAY COUNT IS : \(unwrappedResults.count)\n\n\n 
THE FULL ARRAY IS THE FIRST WHOLE RESULT IS: \(unwrappedResults)\n\n\n \ (unwrappedResults[0])\n

THE ATTRIBUTED FULL TEXT IS: \(unwrappedResults[0].attributedFullText)\n\n\n 
THE ATTRIBUTED PRIMARY TEXT IS: \(unwrappedResults[0].attributedPrimaryText)\n\n\n 
THE ATTRIBUTED SECONDARY TEXT IS: \(unwrappedResults[0].attributedSecondaryText)\n\n\n")
</code></pre>

something about this was incorrect and no print would occur. I would receive the error following errors in my console. 

<blockquote>
 boringssl_metrics_log_metric_block_invoke(131) Failed to log metrics
 &amp;
 boringssl_metrics_log_metric_block_invoke(133) Error Domain=NSOSStatusErrorDomain Code=-50 "Unsupported xpc type"
 UserInfo={NSDescription=Unsupported xpc type}
</blockquote>

I fixed this issue by changing the way I unwrapped/the variables values. Fundamentally I think I was trying to print something using string interpolation that could not be printed and that is what caused this error.

I recently ran into a problem that I couldn't find discussed anywhere on the internet - I was initializing an <code>AVAudioPlayer</code> to play an audio file, and getting the following error:

<pre><code>Error Domain=NSOSStatusErrorDomain Code=-50 "Operation could not be completed. (OSStatus error -50.)
</code></pre>

As it turns out, I had made a mistake creating my <code>NSURL</code> to send to the audio player <code>init</code> method, resulting in the <code>NSURL</code> object being null. Stupid mistake, pretty easy to find when debugging, but I thought I'd list it here just in case someone else does the same thing.

AVAudioPlayer initialization: error code -50

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我最近遇到了一个问题，我在互联网上的任何地方都找不到讨论过的问题-我初始化一个AVAudioPlayer来播放音频文件，并得到以下错误：Error Domain=NSOSStatusErrorDomain Code=-50 "Operation could not be completed. (OSStatus error -50.)事实证明，我在创建要发送给音频播放器init方法的NSURL时犯

问AVAudioPlayer初始化:错误代码-50
EN

回答 4

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问AVAudioPlayer初始化:错误代码-50
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