blocks|key|5814295|text|您需要运行AVD管理器来添加与您的项目设置的目标API版本相匹配的虚拟设备。单击工具->Android->AVD管理器。单击“新建”，添加针对更高API级别的虚拟设备，例如18、19等。然后重启Android+Studio，并打开您的项目，它应该会找到一个目标设备，允许您访问设计视图。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5814296|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|$]]

You need to run the AVD Manager to add a virtual device that matches the target API version your project is set to. Click Tools->Android->AVD Manager. Click on 'New', add virtual devices targeting higher API levels, e.g 18, 19, etc. Then restart Android Studio, and open your project, it should find a target device to allow you access to the Design view.

blocks|key|1763936|text|顶部菜单栏在AVD管理器按钮的左侧有一个“与Gradle文件同步项目”按钮。点击它。Android+Studio可能会变得迟缓5秒，但你也会在项目文件标签中看到一个加载轮子，可能在activity_main.xml标签的顶部有一个黄色的条，说明Gradle正在同步。在大约5秒内，所有内容都将更新，您将看到预期的设备。希望这能有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1763937|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|$]]

Top menu bar on the left side of the AVD Manager button you have a "Sync Project with Gradle Files" button. Click that. Android Studio may become sluggish for like 5 seconds, but you'll also see a loading wheel in the project files tab, and possibly a yellow bar on the top of activity_main.xml tab saying that Gradle is syncing. In about 5 seconds everything will be up to date, and you will see the device as expected. Hope this helps.

blocks|key|5814424|text|我用File+->+Invalidate+Caches/Restart解决了这个问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5814425|entityMap^0|2|4|A|P|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

I solved it with <code>File</code> -> <code>Invalidate Caches/Restart</code>.

blocks|key|4398735|text|我得到了同样的错误，原因是在我的应用程序中，targetSdkVersion被设置为我的AndroidStudio上没有设置的版本，错误在我修改后消失了，希望这会有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4398736|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|$]]

I was getting the same error and the reason was that in my application the targetSdkVersion was set to version I didn't have setup on my AndroidStudio, error disappeared after I modified that, hope that helps.

blocks|key|5814361|text|检查Android清单文件，看看您是否指定了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5814362|<uses-sdk+android:minSdkVersion="integer"
++++++++++android:targetSdkVersion="integer"
++++++++++android:maxSdkVersion="integer"+/>|code-block|syntax|javascript|5814363|如果没有，那么添加这个，它为我解决了这个错误。|5814364|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Check the Android manifest file to see if you have specified this 

<pre><code>&lt;uses-sdk android:minSdkVersion="integer"
 android:targetSdkVersion="integer"
 android:maxSdkVersion="integer" /&gt;
</code></pre>

If not then add this, it solved the error for me.

blocks|key|1761013|text|您只需确保您的右上角api选择低于api+18或18我认为它会工作，否则您将转到图形布局，并看到上角并更改|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1761014|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|$]]

You just make sure your right top corner api selection is below api 18 or 18 I think it will work
or you will goto graphics layout and see the top corner and change

blocks|key|1763856|text|如果仿真器之前已打开，请将其关闭。然后尝试在设计模式下再次启动fragment_main.xml。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1763857|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|$]]

Close the emulator if it is previously opened. Then try launching the fragment_main.xml again in design mode.

blocks|key|1763859|text|重启Android+Studio应该可以解决问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1763860|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|$]]

Restart Android Studio and it should solve the problem

blocks|key|5814368|text|检查包名称是否在文件app\build.gradle的applicationId中设置正确|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5814369|entityMap^0|A|G|R|D|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Check the package name is correctly set in <code>applicationId</code> in file <code>app\build.gradle</code>

blocks|key|5814473|text|顶部菜单栏在AVD管理器按钮的左侧有一个“与Gradle文件同步项目”按钮。点击它。Android+Studio可能会变得迟缓5秒，但你也会在项目文件标签中看到一个加载轮子，可能在activity_main.xml标签的顶部有一个黄色的条，说明Gradle正在同步。在大约5秒内，所有内容都将更新，您将看到预期的设备。希望这能有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5814474|这真的很管用|5814475|如果显示Gradle+Sync失败，请下载缺少的平台和平台，然后重新启动|5814476|它对我很有效..|5814477|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Top menu bar on the left side of the AVD Manager button you have a "Sync Project with Gradle Files" button. Click that. Android Studio may become sluggish for like 5 seconds, but you'll also see a loading wheel in the project files tab, and possibly a yellow bar on the top of activity_main.xml tab saying that Gradle is syncing. In about 5 seconds everything will be up to date, and you will see the device as expected. Hope this helps.

This really works

If it says Gradle Sync failed then download the missing platforms and platforms and then restart 

It worked for me..

My Android Studio in activity_main.xml showing this problem: "Rendering Problems No render target selected"
Help?

No rendering target selected using Android Studio

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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我的Android Studio在activity_main.xml中显示这个问题：“渲染问题没有选择渲染目标”帮助？

问未使用Android Studio选择渲染目标
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