blocks|key|398763|text|您必须将swift版本从Xcode更新到4.0。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|398764|使用下面的步骤|398765|1)从项目经理处选择您的项目(Xcode左上角)|398766|2)选择构建设置|398767|3)搜索"Swift+language“|398768|4)更改"Swift语言版本“=>+Swift+4.0|398769|entityMap^0|4|J|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|V|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|W|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|X|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|Y|8|@]|D|@]|E|$]]|$1|P|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|Q|$]]

You must need to update swift version to 4.0 from Xcode.

Use below step

1) Choose Your Project from project manager (left top from Xcode) 
2) Choose Build Settings 
3) Search "Swift language" 
4) Change "Swift Language Version " => Swift 4.0

blocks|key|3439369|text|注意:确保项目的快速语言版本。下面是如何查看/检查您的swift语言版本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3439370|​|3439371|📷|atomic|offset|length|3439372|3439373|您有两个选项作为查询的解决方案：|3439374|3439375|If你的项目有Swift+versio+4.0版本，|ordered-list-item|style|BOLD|3439376|You应该选择/下载与你项目的Swift语言兼容的pod+(与我分享pod信息和swift版本，这样我就可以为你的POD库提供适用于project).|unordered-list-item|3439377|If的确切的POD版本)你的项目有低于4.0的swift版本+|3439378|You需要将你的项目迁移到swift+4.0(如果你还没有迁移它)。这里是参考问题和答案，如何从swift+(下面)+<4.0迁移到4.0。|3439379|3439380|-+[Xcode+9+Swift+Language+Version+(SWIFT\_VERSION)](https://stackoverflow.com/q/46338588/5638630)|code-block|syntax|javascript|3439381|3439382|根据您在问题中添加的标签-+Swift3是您当前的项目语言版本，pod+'Cosmos'，'~>+12.0‘支持swift+4。|3439383|pod+'Cosmos',+'~>+12.0'|3439384|以下是支持4.0以下Swift版本的以前版本的列表。|3439385|https://github.com/evgenyneu/Cosmos/releases|3439386|尝试之前版本的cosmos，比如：|3439387|pod+'Cosmos',+'~>+11.0.3'
//+or
pod+'Cosmos',+'~>+11.0.1'
//+or
pod+'Cosmos',+'~>+11.0.0|3439388|‘|3439389|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/bfddefdf0ec6d099443415131f8ce284.png|imageAlt|1|LINK|MUTABLE|url^0|0|0|0|1|0|0|0|0|0|0|Q|0|0|23|0|0|U|0|0|1Y|0|0|0|0|1|0|0|1S|0|0|0|Q|0|0|18|0|18|1|0|0|H|0|0|0|1|0^^$0|@$1|2|3|4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1Y|8|@]|9|@$G|1Z|H|20|1|21]]|A|$]]|$1|I|3|C|5|6|7|22|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|23|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|24|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|25|8|@$G|26|H|27|P|Q]]|9|@]|A|$]]|$1|R|3|S|5|T|7|28|8|@$G|29|H|2A|P|Q]]|9|@]|A|$]]|$1|U|3|V|5|O|7|2B|8|@$G|2C|H|2D|P|Q]]|9|@]|A|$]]|$1|W|3|X|5|T|7|2E|8|@$G|2F|H|2G|P|Q]]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|2H|8|@]|9|@]|A|$]]|$1|Z|3|10|5|11|7|2I|8|@]|9|@]|A|$12|13]]|$1|14|3|C|5|6|7|2J|8|@$G|2K|H|2L|P|Q]]|9|@]|A|$]]|$1|15|3|16|5|6|7|2M|8|@$G|2N|H|2O|P|Q]]|9|@]|A|$]]|$1|17|3|18|5|11|7|2P|8|@]|9|@]|A|$12|13]]|$1|19|3|1A|5|6|7|2Q|8|@$G|2R|H|2S|P|Q]]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|2T|8|@$G|2U|H|2V|P|Q]]|9|@$G|2W|H|2X|1|2Y]]|A|$]]|$1|1D|3|1E|5|6|7|2Z|8|@$G|30|H|31|P|Q]]|9|@]|A|$]]|$1|1F|3|1G|5|11|7|32|8|@]|9|@]|A|$12|13]]|$1|1H|3|1I|5|6|7|33|8|@$G|34|H|35|P|Q]]|9|@]|A|$]]|$1|1J|3|-4|5|6|7|36|8|@]|9|@]|A|$]]]|1K|$1L|$5|1M|1N|1O|A|$1P|1Q|1R|-4]]|1S|$5|1T|1N|1U|A|$1V|1C]]]]

Note: Ensure swift language version of your project. Here is how you can see/check your swift language version.

<img src="https://i.stack.imgur.com/jMscJ.png" alt="enter image description here">

 
You have two options as solution to your query:

<ol>
<li>If your project has Swift versio 4.0 
 - You should choose/download POD compatible to your project's swift language (Share me POD info and swift version, so I can provide you exact pod version version for your pod library suitable for project).</li>
<li>If your project has swift version below 4.0 
 - You need to migrate your project into Swift 4.0 (if you've not migrated it). Here is ref question and answer, how to migrate from swift (below) &lt;4.0 to 4.0.

<ul>
<li><a href="https://stackoverflow.com/q/46338588/5638630">Xcode 9 Swift Language Version (SWIFT_VERSION)</a></li>
</ul></li>
</ol>

 
According to tag added by you in your question - Swift3 is your current project language version and pod 'Cosmos', '~> 12.0' is supporting swift 4.

<pre><code>pod 'Cosmos', '~&gt; 12.0'
</code></pre>

Here is list of previous release supporting Swift version below 4.0.

<a href="https://github.com/evgenyneu/Cosmos/releases" rel="noreferrer">https://github.com/evgenyneu/Cosmos/releases</a>

Try previous release of cosmos like: 

<pre><code>pod 'Cosmos', '~&gt; 11.0.3'
// or
pod 'Cosmos', '~&gt; 11.0.1'
// or
pod 'Cosmos', '~&gt; 11.0.0
</code></pre>

'

blocks|key|398850|text|+attributes:+[NSFontAttributeName:+label.font]|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|398851|swift+3.2似乎还可以。我修复了分页菜单视图控制器库。|unstyled|398852|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code> attributes: [NSFontAttributeName: label.font]
</code></pre>

it's seem okay with swift 3.2 .
i fixed with paging menu viewcontroller library.

blocks|key|3226303|text|在我的例子中，我替换了这个代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3226304|[NSAttributedStringKey.font+:+font]|code-block|syntax|javascript|3226305|按下面的代码|3226306|.size(attributes:+[NSFontAttributeName+:+font])|3226307|希望能有所帮助。|3226308|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In My case
I replace This Code 

<pre><code>[NSAttributedStringKey.font : font]
</code></pre>

by Code Below

<pre><code>.size(attributes: [NSFontAttributeName : font])
</code></pre>

Hope it Helps.

blocks|key|402489|text|您的pod可能有错误的swift版本，而不是项目设置。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|402490|要更改pod+swift设置，请进入文件导航器(屏幕左侧)到Pods+(蓝色图标)，然后选择您遇到问题的pod。然后转到build+settings和Swift+Language+version。选择Swift+4。|402491|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Your pod might have a wrong swift version, not the project settings.

To change the pod swift setting, go in the file navigator (left of the screen) to Pods (blue icon) and select the pod you're having problems with. Then go to build settings and go to Swift Language version. Select Swift 4.

blocks|key|396738|text|let+label+=+UILabel()
label.font+=+UIFont.preferredFont(forTextStyle:+.subheadline)|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|396739|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>let label = UILabel()
label.font = UIFont.preferredFont(forTextStyle: .subheadline)
</code></pre>

blocks|key|3226374|text|let+percentOff+=+NSMutableAttributedString(string:+"\(productOff+??+"0")%25OFF",+
attributes:+[NSFontAttributeName:+UIFont(name:+"Montserrat-Regular",+
size:+13)!,NSForegroundColorAttributeName:+UIColor.black,
+NSBackgroundColorAttributeName:+UIColor.black])
++++lblPriceDetail.attributedText+=+percentOff|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3226375|在swift+4.2中，这对我很有效|unstyled|3226376|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>let percentOff = NSMutableAttributedString(string: "\(productOff ?? "0")%OFF", 
attributes: [NSFontAttributeName: UIFont(name: "Montserrat-Regular", 
size: 13)!,NSForegroundColorAttributeName: UIColor.black,
 NSBackgroundColorAttributeName: UIColor.black])
 lblPriceDetail.attributedText = percentOff
</code></pre>

This worked for me in swift 4.2

Just updated pods for xcode 9 and I'm getting the error below for <a href="https://github.com/evgenyneu/Cosmos" rel="noreferrer">Cosmos</a>.

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

<blockquote>
 Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font'
</blockquote>

Type 'NSAttributedStringKey' (aka 'NSString') has no member 'font'

Swift

Xcode

刚刚更新了Xcode9的pods，我得到了下面的错误。​​字体类型'NSAttributedStringKey‘(也称为'NSString')没有成员’‘

问类型'NSAttributedStringKey‘(也称为'NSString')没有成员'font’
EN

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问类型'NSAttributedStringKey‘(也称为'NSString')没有成员'font’
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