Ok so i have an iPhone 6 on iOS 10.3.2 and for 2 hours im trying to sync my iTunes library with my iPhone but it doest work.Im on the latest version of iTunes i and iOS atm.I tried with "Entire music library" then with "Selected playlists"..then i tried to drag and drop from iTunes library to music(on device) and then click Sync but still no results?What am i doing wrong and how can i fix this problem?