"DataSource.Factory<Integer, Rv1data>"

>>"Error, Factory doesn't existt"
>> checked every tutorial on internet: twice.
>> rebuild the whole project: thrice
>> checked the xmls,activities,views,gradle: 4 times
>> thoughts of throwing my laptop : 5 times
.
.
.
checked the import modules:
>>imported javax.sql.DataSource instead of androidx.paging.DataSource

FUUUUUUUUUUUUUUU😡😡😡😡