【报Bug】自定义调试基座安装不成功 小米手机

本人也遇到了这个问题，几经折腾解决办法如下：
1.根据控制台报错信息，System server has no access to read file ，没有权限；
2.检查确认Android手机设置中USB调试模式是否已开启。如果已经开启，重点确认下USB安装是否允许。
（备注：USB调试模式一般在【设置】【开发者选项】里，开发者选项如何开启请自行百度）

20:03:11.259 3035 KB/s (44841592 bytes in 14.424s)  
20:03:11.361 avc:  denied  { read } for  scontext=u:r:system_server:s0 tcontext=u:object_r:sdcardfs:s0 tclass=file permissive=0  
20:03:11.381 System server has no access to read file context u:object_r:sdcardfs:s0 (from path /sdcard/android_debug.apk, context u:r:system_server:s0)  
20:03:11.402 Error: Unable to open file: /sdcard/android_debug.apk  
20:03:11.421 Consider using a file under /data/local/tmp/  
20:03:11.442 Error: Can't open file: /sdcard/android_debug.apk  
20:03:11.462 Exception occurred while executing:  
20:03:11.482 java.lang.IllegalArgumentException: Error: Can't open file: /sdcard/android_debug.apk  
20:03:11.502    at com.android.server.pm.PackageManagerShellCommand.setParamsSize(PackageManagerShellCommand.java:328)  
20:03:11.522    at com.android.server.pm.PackageManagerShellCommand.runInstall(PackageManagerShellCommand.java:906)  
20:03:11.542    at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:158)  
20:03:11.562    at android.os.ShellCommand.exec(ShellCommand.java:103)  
20:03:11.582    at com.android.server.pm.PackageManagerService.onShellCommand(PackageManagerService.java:21911)  
20:03:11.603    at android.os.Binder.shellCommand(Binder.java:629)  
20:03:11.623    at android.os.Binder.onTransact(Binder.java:527)  
20:03:11.643    at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:2809)  
20:03:11.664    at com.android.server.pm.PackageManagerService.onTransact(PackageManagerService.java:4017)  
20:03:11.684    at android.os.Binder.execTransact(Binder.java:726)  
20:03:11.705 3100 KB/s (44841592 bytes in 14.122s)  
20:03:44.551 2943 KB/s (44841592 bytes in 14.874s)  
20:03:44.652 avc:  denied  { read } for  scontext=u:r:system_server:s0 tcontext=u:object_r:sdcardfs:s0 tclass=file permissive=0  
20:03:44.672 System server has no access to read file context u:object_r:sdcardfs:s0 (from path /sdcard/android_debug.apk, context u:r:system_server:s0)  
20:03:44.693 Error: Unable to open file: /sdcard/android_debug.apk  
20:03:44.713 Consider using a file under /data/local/tmp/  
20:03:44.733 Error: Can't open file: /sdcard/android_debug.apk  
20:03:44.754 Exception occurred while executing:  
20:03:44.775 java.lang.IllegalArgumentException: Error: Can't open file: /sdcard/android_debug.apk  
20:03:44.795    at com.android.server.pm.PackageManagerShellCommand.setParamsSize(PackageManagerShellCommand.java:328)  
20:03:44.815    at com.android.server.pm.PackageManagerShellCommand.runInstall(PackageManagerShellCommand.java:906)  
20:03:44.835    at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:158)  
20:03:44.856    at android.os.ShellCommand.exec(ShellCommand.java:103)  
20:03:44.876    at com.android.server.pm.PackageManagerService.onShellCommand(PackageManagerService.java:21911)  
20:03:44.897    at android.os.Binder.shellCommand(Binder.java:629)  
20:03:44.917    at android.os.Binder.onTransact(Binder.java:527)  
20:03:44.937    at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:2809)  
20:03:44.958    at com.android.server.pm.PackageManagerService.onTransact(PackageManagerService.java:4017)  
20:03:44.978    at android.os.Binder.execTransact(Binder.java:726)  
20:03:44.998 2979 KB/s (44841592 bytes in 14.696s)  
20:03:45.018 安装自定义基座App失败，请使用手机助手手动安装E:\work-space\iot-uniapp\unpackage\debug\android_debug.apk到手机上，并重新运行真机调试。