INSTALL_ FAILED_ SHARED_ USER_ Incompatible error resolution

One 、 Problem description

Use the system signature pair apk After signing , Use Android Studio Click Run to directly install the project, which cannot be installed, resulting in an error

INSTALL_FAILED_SHARED_USER_INCOMPATIBLE The screenshot is as follows ：

 

 

Two 、 Try solutions

1. Get rid of Mainefest In the document userId Code

android:sharedUserId="android.uid.system"

2. Ensure that the signature does not report an error , Replaced the new keystore file . Then don't rush to run , First rebuild..... Yes , Is to first rebuild, Run again to solve the problem ...

 

3、 ... and 、 matters needing attention

When we use the system signature file to sign successfully . After replacing the file or 、 Be sure to rebuil project. Otherwise, it will be reported as an error in the title .