Getting "app Not Installed" On Some Devices From Signed Apk

I have done listed points for fixing the same but no luck: 1. Changed package name 2. Clear cache & checked if there is no previous build installed on device 3. allowBackUp

Solution 1:

After trying many solutions, I performed following steps which worked for me:

1. File -> Invalidate Caches/Restart
2. Added signingConfigs in AndroidManifest.xml

signingConfigs { config { keyAlias ‘testAlias’ keyPassword ‘testPassword’ storeFile file('/Users/raj.sharma/test-project/keystore') storePassword 'testPassword' } }

3. Now select “release” in Build Variants