Signed Apk, "app Not Installed" In Some Devices, And In Some Devices Same Apk Is Working Fine

I am new to android development. I am working on a project which has diffrent activities out of which two use jSon parsing. My problem is, even while testing, my ap is working fin

Solution 1:

Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.widget.RelativeLayout

This line is telling you that your xml is malformed. Try to check the settings for android.widget.RelativeLayout

Solution 2:

Steps to Check for -Check if the app is already installed on that phone on which you not getting app not installed issue -As you are sharing apk file kindly make sure security settings of that phone Redmi4 from play store is off.

than you wont be getting that issue

Solution 3:

I also faced similar issues on Redmi Devices, the work around for me is to Copy Signed apk in Downloads using Device file explorer option in Android Studio and then installing the apk.

Installing using ADB doesn't work for Redmi Devices