I need export table dump using SQL DEVELOPER
I do: View->DBA then right click on data pump and then data pump export wizard
In opened export wizard window, I choose Tables type, then click next and in second step, there are not displayed any tables: 
Though, I have several tables in current connection (under this user).
What is problem here? why I cant see table list for exporting?
SQL DEVELOPER version: 4.0.3