iPhone 5s, iTunes won't progress past preparing to update when trying to add music
I have an iPhone 5s, I recently updated it to iOS7.1.1 and since then I have no longer been able to add music to my phone, whenever I try it will not progress past preparing to update. When I look at my music list through iTunes, all the songs are there but are dull, meaning they haven't been transfered yet.
I have it set up as manually manage. I have not had this problem before and it is incredibly annoying as I have numerous new albums I would like to have on my phone.
I have over 12GB free so it is not a space issue.
Any help will be greatly appreciated.
iPhone 5s, iOS 7.1.1