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运行我的程序时,Android Studio无法找到设备

[英]Android studio cannot find device when I run my program

I have tried everything I can think of and everything I have looked up online. 我已经尝试了所有我能想到的东西以及我在网上查找的所有东西。 None get me progress. 没有人能使我进步。 On the phone I have activatied developer mode, I am using a cord that can transfer files, and I have given computer permission to access my phone. 在电话上,我已经激活了开发人员模式,我使用的线可以传输文件,并且我已授予计算机访问电话的权限。 On the computer end I have updated every thing I can think of and I am able to see my phones storage from it but the device does not appear on android studio. 在计算机端,我已经更新了所有可以想到的内容,并且可以从中查看我的手机存储,但该设备未出现在android studio中。

The laptop runs on Windows 8 (unfortunately). 笔记本电脑可在Windows 8上运行。 Ask if any other info is needed. 询问是否需要其他信息。

Thank you in advance, I'm getting desperate. 预先谢谢您,我感到绝望。

CHECK IF YOUR DEVICE API LEVEL IS LOWER THAN THA APP MINIMUM API LEVEL 检查您的设备API级别是否低于应用程序的最低API级别

it might happen that the app you are building is build for a higher android-version. 您正在构建的应用可能是针对更高版本的android版本构建的。 like if you are building an app for api 21 and your device is have api level 17 then it wont show your device in the list of connected devices. 例如,如果您正在为api 21构建应用程序,并且您的设备具有api级别17,那么它将不会在已连接设备的列表中显示您的设备。 once i faced this problem 一旦我遇到这个问题

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