Can't transfer music files from itunes to iphone

[Bernadette]

Even when I check the option to manage my library manually, the files aren't transferred. The computer is recognizing the phone, so I can't figure out what the problem is. Anybody have any ideas? Thanks, all!

[Gardener]

Have you tried these two possible fixes?

https://mobiletrans.wondershare.com/iphone-transfer/how-to-fix-cannot-transfer-music-to-iphone.html