blocks|key|824050|text|我找到了。我对XCode不太熟悉，所以对我来说不是很简单。在左侧的项目树上单击"Pods“，然后单击下拉菜单，从左上角的列表中选择SwiftyJSON。然后更改Swift版本，该版本被设置为5.0。看这张照片。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|824051|​|824052|📷|atomic|offset|length|824053|824054|干杯|824055|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/c437ed517811405d5748fc218926c5d0.png|imageAlt^0|0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@$G|X|H|Y|1|Z]]|A|$]]|$1|I|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|11|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S|T|-4]]]]

I found it. I am not familiar with XCode so it was not very straightforward for me.
I clicked "Pods" on the project tree on the left, then clicked the dropdown to select SwiftyJSON from the list at the top left corner. Then changed the Swift version which was set to 5.0. See the image.

<a href="https://i.stack.imgur.com/Vv18r.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Vv18r.png" alt="enter image description here"></a>

Cheers

blocks|key|824091|text|对于任何构建仍然失败的人来说，尽管遵循了前面的解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|824092|使用IDE或编辑器在整个项目文件中查找SWIFT_VERSION文字-我打开了子目录，打开项目根目录，找到-查找文件。-搜索SWIFT_VERSION|ordered-list-item|offset|length|style|CODE|824093|在我的例子中，项目文件中的一些常量是proj.pbxproj文件中的swift_version，尽管我在Xcode上更改了swift_version。|824094|📷|atomic|824095|​|824096|更改所需的值并保存文件|824097|重新启动Xcode|824098|试建|824099|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/028207242fbe871b9d20370b571c24e8.png|imageAlt^0|0|J|D|1Q|D|0|0|0|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|15|8|@$E|16|F|17|G|H]|$E|18|F|19|G|H]]|9|@]|A|$]]|$1|I|3|J|5|D|7|1A|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1B|8|@]|9|@$E|1C|F|1D|1|1E]]|A|$]]|$1|N|3|O|5|6|7|1F|8|@]|9|@]|A|$]]|$1|P|3|Q|5|D|7|1G|8|@]|9|@]|A|$]]|$1|R|3|S|5|D|7|1H|8|@]|9|@]|A|$]]|$1|T|3|U|5|D|7|1I|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12|13|-4]]]]

For anyone who's build continues to fail despite following the previous solution:

<ol>
<li>Find <code>SWIFT_VERSION</code> literal in whole project files using IDE or editor
&ndash; I turned on sublimetext, open project root directory, [Find] - [Find in Files.]
&ndash; Search <code>SWIFT_VERSION</code></li>
<li>In my case some constants in projectfile was <code>SWIFT_VERSION = 5.0</code> in proj.pbxproj file despite I changed swift_version on Xcode

<a href="https://i.stack.imgur.com/mfHkF.png" rel="noreferrer"><img src="https://i.stack.imgur.com/mfHkF.png" alt="&lt;code&gt;SWIFT_VERSION = 5.0&lt;/code&gt; in proj.pbxproj"></a></li>
<li>Change value you want and save file</li>
<li>Restart Xcode</li>
<li>Try Build</li>
</ol>

blocks|key|1455172|text|“通常此错误来自您安装的荚(如Alamofire、SwiftyJSON+ets)。”。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1455173|要解决这个问题，请执行以下步骤：|1455174|(图示见下图)|1455175|在项目树上选择“Pods”|ordered-list-item|1455176|从目标中选择依赖项:一次选择一个依赖项，然后对每个目标执行步骤3和步骤4|1455177|确保选中“生成设置”选项卡|1455178|上下滚动，找出“Swift语言版本”。选择一个版本，例如'Swift+4.2‘|1455179|如果您安装了多个依赖项，则必须为每个依赖项设置“Swift语言版本”。(看一下图像，这个项目有两个依赖项:+Alamofire和SwiftyJSON，所以我已经做了2次步骤2到步骤4)|1455180|重新启动Xcode，然后构建|1455181|希望错误消失。|1455182|​|1455183|📷|atomic|1455184|1455185|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/3ffd13f1e0c0d0b4831a16f532077cfb.png|imageAlt^0|0|16|0|0|0|0|0|0|0|0|0|E|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|1D|8|@$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1G|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|1H|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1I|8|@]|D|@]|E|$]]|$1|M|3|N|5|L|7|1J|8|@]|D|@]|E|$]]|$1|O|3|P|5|L|7|1K|8|@]|D|@]|E|$]]|$1|Q|3|R|5|L|7|1L|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1M|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1N|8|@$9|1O|A|1P|B|C]]|D|@]|E|$]]|$1|W|3|X|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|Y|3|Z|5|6|7|1R|8|@]|D|@]|E|$]]|$1|10|3|11|5|12|7|1S|8|@]|D|@$9|1T|A|1U|1|1V]]|E|$]]|$1|13|3|Z|5|6|7|1W|8|@]|D|@]|E|$]]|$1|14|3|-4|5|6|7|1X|8|@]|D|@]|E|$]]]|15|$16|$5|17|18|19|E|$1A|1B|1C|-4]]]]

&quot;Normally this error comes from the pods(dependencies like Alamofire, SwiftyJSON ets) you have installed.&quot;
To solve the problem, follow these steps:
(See the image below for illustration)
<ol>
<li>Select 'Pods' on the project tree</li>
<li>Select a dependency from TARGETS: select one dependecy at a time then do step 3 and step 4 for each targets</li>
<li>Make sure 'Build Settings' tab selected</li>
<li>Scroll up and down and find out 'Swift Language Version'. Select a version, for example 'Swift 4.2'</li>
</ol>
If you have multiple dependency installed, you have to set 'Swift Language Version' for each of them. (look at the image, this project have 2 dependencies: Alamofire and SwiftyJSON, so I have done 2 times step 2 to step 4)
Restart Xcode then build
hope the error gone.
<a href="https://i.stack.imgur.com/1ncB9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1ncB9.png" alt="Shown steps to follow, marked sequentially" /></a>

blocks|key|824348|text|使用search选项卡并搜索SWIFT_VERSION。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|824349|将显示指向所有事件的链接列表。|824350|单击链接将带您到“生成设置”页面中的相关设置。根据需要使用dropbox进行更改。|824351|​|824352|📷|atomic|offset|length|824353|824354|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/c0eba41430fb2fa19cb98a88654f3cec.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@$K|11|L|12|1|13]]|A|$]]|$1|M|3|G|5|6|7|14|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U|V|-4]]]]

Use the search tab and search for SWIFT_VERSION. 
A list of links to all occurrences will appear. 
Clicking a link will take you to the relevant setting in the Build Settings page. Change as needed using the dropbox. 

<a href="https://i.stack.imgur.com/2ZRNN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2ZRNN.png" alt="image for reference"></a>

I am getting this error while trying to install <a href="https://github.com/wuxudong/react-native-charts-wrapper" rel="noreferrer">react-native-charts-wrapper</a>. I have followed the steps <a href="https://github.com/wuxudong/react-native-charts-wrapper/blob/master/installation_guide/README.md" rel="noreferrer">exactly as they say</a> but still not able to build the project successfully.

I also set the SWIFT_VERSION to 4.2 in build settings of my project, still getting the same error.

My XCODE version: Version 10.1 (10B61)

Any ideas?

SWIFT_VERSION '5.0' is unsupported, supported versions are: 3.0, 4.0, 4.2. (in target 'SwiftyJSON')

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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在试图安装时，我得到了这个错误。我遵循了的步骤，但仍然无法成功地构建项目。在我的项目的构建设置中，我还将SWIFT_VERSION设置为4.2，仍然得到相同的错误。我的XCODE版本: 10.1版(10B61)有什么想法吗？

问SWIFT_VERSION '5.0‘不受支持，支持的版本是: 3.0、4.0、4.2。(目标'SwiftyJSON')
EN

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问SWIFT_VERSION '5.0‘不受支持，支持的版本是: 3.0、4.0、4.2。(目标'SwiftyJSON')EN