Problem

We have compilation error:

Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:
    class com.xiii.lab.database.AppDatabase, unresolved supertypes: androidx.room.RoomDatabase

Delais

• All implementations in database module are internal. Only DatabaseModule is used as public API
• Module app works only with interfaces from domain module. All implementations should be provided from dagger modules in AppComponent
• Module database depends on RoomDatabase and include this dependency as implementation

Solution

Issue can be solved by changing

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

to

api "androidx.room:room-runtime:$room_version"

but this solution is not appropriate. Module app should knows nothing about implementation details of database module