iTunes could not copy "file" to the iPhone "iphone name" because the file could not be read
I am new to iPhones. Coming from the Android world. I just got a new iPhone X. When I try to load my iTunes playlist to the new iPhone I get this error: iTunes could not copy "filename" to the iPhone "iphone name" because the file could not be read. I do not get the error on my iPod. My iTunes playlists load without errors on my iPod. I tried running SyncToy as suggested in one of the answers to this problem, and SyncToy did not find any errors in the iTunes files. Any help is greatly appreciated.
iPhone X, iOS 11.2.6