blocks|key|2719807|text|固定.问题与未编译的项目目标的存在有关。因此，如果您有目标，例如A、B、C和C没有编译，这会导致语法突出显示的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2719808|entityMap^0|0|2|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|$]]

Fixed. Problem was related to the presence of target in project which is not compiled. So if you have targets e.g. A, B, C and C is not compiled this cause problems with syntax highlighting.

blocks|key|2719920|text|这个答案帮助我完成了一个项目：https://forums.developer.apple.com/thread/46223：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2719921|我从WWDC的苹果工程师那里得到了这个问题的帮助并解决了这个问题。问题来源于可可豆..。显然，cocoapods正在将.h文件复制到构建目录中，而SourceKit则感到困惑。我不太清楚为什么要复制.h文件--那里不需要它们。因此，修复方法是在构建阶段部分中添加一个构建后脚本，该脚本在生成后移除标头。
看起来会是这样的：|blockquote|2719922|function+removeHeaders()+{++
++++find+$BUILD_ROOT/Debug-iphonesimulator/++-name+'*.h'+-exec+rm+-f+{}+\;++
}++
removeHeaders++|code-block|syntax|javascript|2719923|entityMap|0|LINK|mutability|MUTABLE|url|https://forums.developer.apple.com/thread/46223^0|F|1B|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|F|7|X|8|@]|9|@]|C|$]]|$1|G|3|H|5|I|7|Y|8|@]|9|@]|C|$J|K]]|$1|L|3|-4|5|6|7|Z|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]]]

This answer helped me <a href="https://forums.developer.apple.com/thread/46223" rel="noreferrer">https://forums.developer.apple.com/thread/46223</a> with one of my projects:

<blockquote>
 I got help from an apple engineer at WWDC on this issue and resolved
 it. The problem stemmed from cocoapods... Apparently cocoapods was
 copying .h files into the build directory and SourceKit was getting
 confused. I'm not entirely sure why the .h files were being copied -
 they aren't needed there. So the fix was to add a post-build script
 in your build phases section that removes the headers after a build. 
 It would look something like this:
</blockquote>

<pre><code>function removeHeaders() { 
 find $BUILD_ROOT/Debug-iphonesimulator/ -name '*.h' -exec rm -f {} \; 
} 
removeHeaders 
</code></pre>

blocks|key|3129988|text|我已经发现，当语法突出显示结束时，在Xcode中切换选项卡可以解决¯_(ツ)_/问题，有时我发现我需要切换到至少4个不同的选项卡才能再次运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3129989|否则退出并重新打开|3129990|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|$]]

I have found that when syntax highlighting falls over, switching tabs in Xcode fixes the issue ¯_(ツ)_/¯ sometimes I find I need to switch to at least 4 different tabs before it comes on again.

Otherwise a quit and reopen

blocks|key|2719801|text|这也发生在我的Xcode+8通用汽车，但也很多时候，我使用Xcode+7:有时自动完成的功能和语法高亮的模具没有通知。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2719802|它对我唯一有效的解决方案是重新启动Xcode，但是有几次我需要完全重新启动Mac；我仍然不知道是什么导致了这个恼人的问题。|offset|length|style|BOLD|2719803|entityMap^0|0|D|9|V|9|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

It happened also to me with Xcode 8 GM but also lots of time when I used Xcode 7: sometimes the auto-complete feature and the syntax highlighting die without notice.

The only solution that it works for me is restart Xcode but a few times I needed to complete reboot my Mac; I still don't know exactly what causes this annoying problem.

blocks|key|2719865|text|设置使用传统的Swift语言版本到是在构建设置帮助我解决类似的问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2719866|entityMap^0|2|E|H|1|J|4|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

Setting Use Legacy Swift Language Version to YES in the Build Settings helped me to solve similar issue

blocks|key|3130011|text|评论，然后取消评论，受影响的线条对我来说是有效的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3130012|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Commenting and then uncommenting the affected lines worked for me.

blocks|key|1624239|text|就我而言：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1624240|在Finder中，我导航到了user->Library->Developer->Xcode->DerivedData.关闭Xcode项目，然后清除DerivedData。这是我的工作。|offset|length|style|BOLD|1624241|愉快的编码.)|1624242|entityMap^0|0|E|18|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

In my case:

In Finder I navigated to user->Library->Developer->Xcode->DerivedData. Close your Xcode Project then Clear DerivedData. It's work for me.

Happy Coding...:)

blocks|key|1621800|text|对我来说，代码完成/突出显示由于编译源代码中在构建阶段缺少的文件而无法工作。我加了那个文件就行了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1621801|希望这能帮到任何人。|1621802|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|$]]

For me, code completion/highlighting not working due to the missing file in the Compile Sources under Build Phases. I added that file and it works.

Hope this helps anyone.

blocks|key|1621771|text|正如上面其他人所指出的--如果我创建了一个新的选项卡..or+4，那么关闭通常这样做的选项卡。有时，注释掉一行，然后立即取消注释，这也是一个窍门。我厌倦了使用几个键来容纳这一点，并为我做了一个简单的AppleScript。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1621772|创建一个自动程序‘服务’并将这个脚本添加到其中。在键盘->快捷方式下的系统首选项中，->服务找到您的新服务并将其分配给一个空函数键(我使用了F1)，现在您有了一个1键修复！|1621773|on+run+{input,+parameters}

tell+application+"Xcode"
++++activate
++++tell+application+"System+Events"+to+keystroke+"t"+using+command+down
++++delay+(0.5)
++++tell+application+"System+Events"+to+keystroke+"w"+using+command+down
++++delay+(0.5)
++++tell+application+"System+Events"+to+keystroke+"/"+using+command+down
++++delay+(0.5)
++++tell+application+"System+Events"+to+keystroke+"/"+using+command+down
++++delay+(0.5)
end+tell


return+input
end+run|code-block|syntax|javascript|1621774|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

As others have stated above - if I create a new tab ..or 4 then close the tab that usually does it. Sometimes commenting out a line then immediately uncommenting does the trick as well. I got tired of using several keys to accompolish this and made a simple AppleScript to do it for me.

Create a Automator 'service' and add this script to it. In System Preferences under Keyboard -> Shortcuts -> Services find your new service and assign it to an empty function key (I used F1) and now you have a 1 key fix!

<pre><code>on run {input, parameters}

tell application "Xcode"
 activate
 tell application "System Events" to keystroke "t" using command down
 delay (0.5)
 tell application "System Events" to keystroke "w" using command down
 delay (0.5)
 tell application "System Events" to keystroke "/" using command down
 delay (0.5)
 tell application "System Events" to keystroke "/" using command down
 delay (0.5)
end tell


return input
end run
</code></pre>

The code above has correct syntax highlighting in Xcode 7. It is mix of Obj-C + Swift:

<a href="https://i.stack.imgur.com/bhC47.png"><img src="https://i.stack.imgur.com/bhC47.png" alt="enter image description here"></a>

I've updated project to support Xcode 8 and only few things was changed:

<ul>
<li>In Build Settings Swift 2.3 support
<a href="https://i.stack.imgur.com/mcS0M.png"><img src="https://i.stack.imgur.com/mcS0M.png" alt="enter image description here"></a></li>
<li>And have fixed few errors related to implicitly unwrapped properties in UIKit
<a href="https://i.stack.imgur.com/8QQE8.png"><img src="https://i.stack.imgur.com/8QQE8.png" alt="enter image description here"></a></li>
</ul>

After all the project is compiled fine for Xcode 8. 

But Obj-C code integrated in Swift doesn't have any syntax highlighting and vice versa:

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

And there is &lt;&lt; error type >> problem with autocomplete:
<a href="https://i.stack.imgur.com/4dUWd.png"><img src="https://i.stack.imgur.com/4dUWd.png" alt="enter image description here"></a>

Derived data deleting doesn't help, Xcode restart either :) CocoaPods version 0.38.2, iOS 7

Xcode 8 syntax highlighting doesn't work

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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上面的代码具有正确的语法，在Xcode 7中突出显示。它混合了Obj+ Swift：​​我更新了支持Xcode 8的项目，并且只更改了几处：在构建设置中，Swift 2.3支持​并修正了与UIKit中隐式展开属性相关的少数错误。​毕竟，该项目是为Xcode 8编译的精细。但是集成在Swift中的Obj代码没有任何突出显示的语法，反之亦然：​​还有<<错误类型的自动完成的>>问题：​派生数据删除没有

问Xcode 8语法突出显示不起作用
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