Permission Denial: this requires android.permission.INTERACT_ACROSS_USERS_FULL

I got the error android.permission.INTERACT_ACROSS_USERS_FULL because I had some conflicts in the bin directory of the project. I did some changes to the my app package id and the app-file-1.apk in the bin directory doesn't match with the project.

I did a project > clean and checked that the bin folder was cleared and regenerated, and it works now.

According to this answer: android.permission.INTERACT_ACROSS_USERS_FULL is a signature level permission. Your app will not be able to use it until and unless it has the same signature as the system.

Which is not something you can achieve unless you either are the creator or the system build, or collaborating with them such that they are willing to sign your apk with their certificate. In other words, this is off limits for most developers.