blocks|key|2846311|text|看起来我们在设备上运行完之后不能直接使用apk了->output->apk文件夹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2846312|2846313|升级到android+studio+3.0后，您需要转到Build+->+Build+Apk(s)，然后从build+->+output+->+apk+->+debug复制apk|blockquote|offset|length|style|BOLD|2846314|2846315|2846316|像这样的+-|2846317|​|2846318|📷|atomic|2846319|2846320|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/fa9bf80653707697c2f254a3fd767aa5.jpeg|imageAlt^0|0|0|S|L|0|0|0|4|2|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|14|8|@$F|15|G|16|H|I]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|17|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|19|8|@$F|1A|G|1B|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|1C|8|@]|9|@]|A|$]]|$1|P|3|Q|5|R|7|1D|8|@]|9|@$F|1E|G|1F|1|1G]]|A|$]]|$1|S|3|O|5|6|7|1H|8|@]|9|@]|A|$]]|$1|T|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]]|U|$V|$5|W|X|Y|A|$Z|10|11|-4]]]]

Looks like we can not directly use the apk after running on the device from the build->output->apk folder.

<blockquote>
 After upgrading to android studio 3.0 you need to go to Build -> Build
 Apk(s) then copy the apk from build -> output -> apk -> debug
</blockquote>

Like this -

<a href="https://i.stack.imgur.com/CNJr4.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/CNJr4.jpg" alt="enter image description here"></a>

blocks|key|2846375|text|首先在android+studio上点击Build+Icon，然后点击Build+APK(s)，然后生成Apk，复制APK。事实上，它是有效的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2846376|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|$]]

Fist Click On Build Icon on android studio after that click Build APK(s)
then Generate APK the copy Apk.
It is working perfact.

blocks|key|102332|text|文件->无效缓存/重新启动|type|unstyled|depth|inlineStyleRanges|entityRanges|data|102333|为我解决问题。|102334|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|$]]

File-> Invalidate Caches/restart 

solve problem for me.

blocks|key|102297|text|我需要创建一个签名的APK才能正确安装。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|102298|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 needed to create a signed APK for it to install correctly.

blocks|key|2846452|text|在将android+studio升级到3.0版本后，我也遇到了同样的问题！要解决此问题，您需要禁用instant+run，它可以在+->+->设置->构建，执行，部署->+Instant+Run下找到。现在你需要重新生成一个签名的apk，启用了两个签名版本，即V1和V2，可以在Build+->+Generate+signed+APK下找到，现在尝试安装签名的apk，这次它应该安装得很完美:)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2846453|entityMap^0|1T|W|3V|S|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 have also faced the same problem after upgrading android studio to version 3.0!
To solve this issue you need to disable instant run that can be found under 
File -> Settings -> Build,Execution,Deployment -> Instant Run. Now You need to re-generate a signed apk with both the signature versions enabled i.e V1 &amp; V2 that can be found under Build -> Generate Signed APK Now try to install the signed apk, this time it should be installed perfectly :).

blocks|key|2634917|text|所以提示"App+Not+Installed“的原因是多方面的，请返回Android+Studio+2.3。从3.0开始根本不是一个选项！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2634918|当我们从Android+Studio+2.3升级到3.0时，我们可以发现一些主要由支持库引起的配置问题，这将导致我们的应用程序无法安装。|2634919|为了避免这个问题，我们需要使Android+Studio+3.0%2B中的缓存失效，这个问题就会得到解决。|2634920|因此文件->会使缓存无效并重新启动|2634921|这是一个对我有效的解决方案...|2634922|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

So the message "App Not Installed" will refer to multiple causes, and please returning to Android Studio 2.3. from 3.0 is not an option at all!

When we upgrade from Android Studio 2.3 to 3.0 we can find some configuration issues caused mainly by the support libraries, that will cause that our application could not be installed.

To avoid this problem we need to invalidate cache in Android Studio 3.0+ and the problem will be solved.

So File -> invalidate cache and restart

This one is solution that worked for me...

blocks|key|99367|text|在最新版本的Android+Studio+(4.1.1)中，只需重新构建项目即可。(Build>Rebuild项目)。然后在AndroidStudioProjects\app\build\outputs\apk\debug.上获取apk|type|unstyled|depth|inlineStyleRanges|entityRanges|data|99368|希望它能起作用！|99369|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|$]]

In the latest version of Android Studio (4.1.1) just rebuild the project. (Build&gt;Rebuild Project).
Then get you apk at AndroidStudioProjects&lt;Project Name&gt;\app\build\outputs\apk\debug.
Hope it'll work!

blocks|key|2634889|text|首先，清理你的项目。删除调试文件夹中的旧apk和json文件。然后重新生成build+apk。它起作用了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2634890|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|$]]

first clean your project.
delete old apk and json file in debug folder.
then re generate build apk.
it works.

After upgrading to android studio 3.0 the debug apk is saying App not istalled.

<blockquote>
 The package appears to be corrupted 
</blockquote>

Android Studio 3.0 Unsigned Apk Not Installing

Android Studio

Android

在升级到android studio 3.0之后，调试程序显示应用程序未安装。软件包似乎已损坏

问Android Studio 3.0未签名Apk未安装
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