ChrisW67:: i tried cout<< in ubuntu and it didn't work thats way i made this wrong conclusion but when i tried it again and it worked .... see this is what happens when a newbie gives advice he spoiled it all by saying something stupid

Another advice this time its not wrong::qDebug()<< is for outputing std strings and QStrings but cout<< is only for outputing std strings

so thanks chrisw67 for correcting my mistake