DELETE_FAILED_INTERNAL_ERROR Error while Installing APK

Question

I am using Android Studio 2.2 Preview. I am facing the issue

Failure: Install failed invalid apk

Error: While installing apk,

Answer 1

Oh my goodness, after a long time I have resolved the issue by changing the ApplicationID: "com.company.2016app" to "com.company.app" in build.grade. It resolved all my issues. Now its working great.