java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/app/ActivityManagerCompat

Question

Description

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I want to build todolist app.I want to store information using RoomDatabse. I build Database with room and get infomation than save to database. But

Answer 1

you might be missing the dependency ...

 androidx.core:core:1.0.0

which provides androidx.core.app.ActivityManagerCompat.