I'm encountering an error when deploying my app package "Failed to install application null from package". I have 15 phones. 14 are Nokia's and one is a Samsung Galaxy XCover 4. On the Nokia's everything works fine, the package installs. On the Samsung it fails. The devices are set up for Android for Work and enrolled in Soti as Android Plus devices.
I have enabled "Unknown Sources", and there is no Google Play Protect on the phone. The phone is running Android 7.0.
Has anyone come across this error before?