iOS Question where to save db.sql file.

I am using db.sql file from one of my B4A project. in B4A project file was saved in Files folder. but when i save it in Files folder in B4i the code give me error "Database file not found" when i try to initialize it with "File.DirDocuments"

If SQL1.IsInitialized = False Then
SQL1.Initialize(File.DirDocuments,"db.sql",False)

End If