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

In your gradle dependencies, do you use this?

implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "androidx.room:room-compiler:$room_version"

If so, replace it with:

    implementation 'android.arch.persistence.room:runtime:1.1.1'
    annotationProcessor 'android.arch.persistence.room:compiler:1.1.1'